s1
--:--:--UTC

Searching APEX

Starting…

  1. ○ Searching Threats, IOCs & Threat Intelligence locally
  2. ○ Querying external providers
  3. ○ Asking AI Forensic Validator
  4. ○ Creating new entry from validated hit

0s elapsed

CVE-2026-120457

📛 CVE Title

libaec through 1.1.7 Out-of-Bounds Read via m_se_decode() Second Extension Decoder

⬇ Download JSON

Description

libaec through 1.1.7 contains an out-of-bounds read vulnerability in m_se_decode() in src/decode.c that allows attackers to bypass a signed bounds check via an overlong fundamental sequence. Attackers can supply a crafted CCSDS 121.0/SZIP stream with 2^31 or more zero bits to crash the decoder or leak adjacent memory into decoded samples.

Overview

State
PUBLISHED
Assigner (CNA)
VulnCheck
CVSS severity
MEDIUM
CVSS score
CVSS 5.8 / 10 5.8 5.8 / 10
CVSS vector
CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:P/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N
Effective score
5.8 / 10 MEDIUM source: CNA overview
CWE(s)
CWE-196
Reserved
2026-11-02
Published
2026-11-02 14:29 UTC
Last updated
2026-11-02 15:46 UTC
Source
https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/120xxx/CVE-2026-120457.json

NVD triage scoring NVD CVE 2.0

Layer NVD adds on top of the CNA's CVE record — published / last-modified timestamps, exploitability / impact subscores, and the FIRST.org EPSS probability that this CVE will be exploited in the wild in the next 30 days.

NVD published
2026-11-02 15:17:29 UTC
NVD last modified
2026-11-02 19:34:23 UTC
NVD CVSS v3.1
CVSS 5.3 / 10 5.3 5.3 / 10 MEDIUM source: disclosure@vulncheck.com
NVD CVSS vector
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:H
Exploitability subscore
1.0 / 10
Impact subscore
4.2 / 10
EPSS score
0.0024 (probability of exploitation in next 30 days)
EPSS percentile
15.24% vs all CVEs — higher = more likely to be exploited, as of 2026-11-03

NVD / KEV / EPSS data refreshed 2026-11-03 15:46 UTC. Re-run the 🛰 Backfill from NVD button above to refresh.

European Union Vulnerability Database ENISA EUVD

ENISA's official EU repository for curated vulnerability intelligence. Carries a separate identifier (EUVD-YYYY-NNNN) and frequently exposes an earlier-published description + CVSS than NVD does.

EUVD ID
EUVD-2026-115217
Assigner
VulnCheck
Published
Nov 2, 2026, 2:29:13 PM
Updated
Nov 2, 2026, 3:46:06 PM
EUVD base score (CVSS 4.0)
5.8 / 10
CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:P/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N
EUVD-reported EPSS
0.0000
Vendors
Deutsches Klimarechenzentrum
Products
libaec (0 ≤1.1.7)
Aliases
GHSA-6vjr-59w2-48mg

ENISA description: libaec through 1.1.7 contains an out-of-bounds read vulnerability in m_se_decode() in src/decode.c that allows attackers to bypass a signed bounds check via an overlong fundamental sequence. Attackers can supply a crafted CCSDS 121.0/SZIP stream with 2^31 or more zero bits to crash the decoder or leak adjacent memory into decoded samples.

EUVD references (6)

Affected products (1)
VendorProductVersionsPlatforms
Deutsches Klimarechenzentrum libaec 0 (affected) —

Vendor references (6)

References embedded in the original CVE record by the assigning CNA.

MITRE references (6) cveawg.mitre.org

Pulled from MITRE's CVE Services API by the 🛰 Backfill from MITRE button.

Web references (0)

DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.

No web references attached yet.

NVD-tagged references (7)

Reference list NVD curates from the CNA record, vendor advisories, and third-party reports. The tag chips below are NVD's analyst-assigned categories.

Remediations (10)

  • October 2026 Critical Patch Update Released | security
    web:blogs.oracle.com

    For more information about the Critical Patch Update program, see the security vulnerability remediation practices page located on the Oracle Trust Center.

    2026-11-03 12:35 UTC
  • Patch Notes Version 2.04.02 (All Platforms Hotfix)
    web:crimsondesert.pearlabyss.com

    Fellow Greymanes, Here are the fixes and improvements that have been added this patch . Update ScheduleThe patch is rolling out across all platforms. Please refer to the Update section below to see the state of the patch for each platform. UpdateSteam (PC): Patch available now Steam (Mac): Patch ...

    2026-11-03 12:35 UTC
  • Pennsylvania Access To Criminal History - Record Check Status - pa
    web:epatch.pa.gov

    Check the status of your Pennsylvania criminal history record through this platform.

    2026-11-03 12:35 UTC
  • Pennsylvania Access To Criminal History - Home - pa
    web:epatch.pa.gov

    Why does PATCH exist? Its purpose is to better enable the public to obtain criminal history record checks. The repository was created and is maintained in accordance with Pennsylvania's Criminal History Information Act contained in Chapter 91 of Title 18, Crimes Code. This Act also directs the Pennsylvania State Police (PSP) to disseminate criminal history data to criminal justice agencies ...

    2026-11-03 12:35 UTC
  • North Branford News, Breaking News in North Branford, CT - Patch
    web:patch.com

    North Branford Latest Headlines: North Branford 2026 Election Voter Guide: Meet The Candidates; North Branford Police Blotter: Oct. 26 to Nov. 2, 2026 ; Too Busy For A Flu Shot? How To Fit It Into ...

    2026-11-03 12:35 UTC
  • Cisco Meraki Security Hardening Release: October 2026
    web:sec.cloudapps.cisco.com

    As part of Cisco's ongoing commitment to proactive security and product quality, engineering teams conducted a comprehensive internal security review. This review resulted in software hardening releases that address multiple internally discovered vulnerabilities. These vulnerabilities were found during internal testing and are not known to be actively exploited. To assist customers in patching ...

    2026-11-03 12:35 UTC
  • ArcGIS Server Security 2026 Update 3 Patch - Esri Support
    web:support.esri.com

    This patch deals specifically with the issues listed below under Issues addressed with this patch . As part of the patch installation, the ArcGIS Server service is stopped and restarted. The restart may take several minutes depending on the number of services published on the ArcGIS Server site. This patch can be uninstalled as outlined in the Uninstalling this patch on Windows and Uninstalling ...

    2026-11-03 12:35 UTC
  • Patch now: PHP2Shell, Brotli, and eMudhra guidance for customers
    web:www.microsoft.com

    Resources you patch manually: nothing is installed automatically for you. Apply the updates now, starting with internet-facing systems, and then restart or reimage. Software you installed or bundled: you update it no matter how you patch . Rebuild and redeploy containers and custom images.

    2026-11-03 12:35 UTC
  • Patch 2.5 Notes for Modders (Unofficial Fix Retired)
    web:www.nexusmods.com

    Retired: the official 2.5 updates of RED4ext, ArchiveXL, TweakXL and Codeware are out, so use those. Still here: technical notes for mod authors on what patch 2.5 changed for plugins, plus source diff

    2026-11-03 12:35 UTC
  • KB4951: Vulnerabilities Resolved in Veeam ONE 13.1 Patch 1
    web:www.veeam.com

    Vulnerabilities Resolved in Veeam ONE 13.1 Patch 1 Veeam® is committed to ensuring its products protect customers from potential risks. As part of that commitment, we operate a Vulnerability Disclosure Program (VDP) for all Veeam products and perform extensive internal code audits. When a vulnerability is identified, our team promptly develops a patch to address and mitigate the risk. In line ...

    2026-11-03 12:35 UTC

AI Forensic Analysis

Only Available for Registered Users. Sign in to view.

Raw JSON

The full cvelistV5 record. Download as CVE-2026-120457.json.

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-120457",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-11-02T15:45:31.200283Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-11-02T15:46:06.742Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "references": [
          {
            "tags": [
              "exploit"
            ],
            "url": "https://hackmd.io/@haindpwn/libaec-se-decode-fs-signedness-oob-read"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "libaec",
          "repo": "https://github.com/Deutsches-Klimarechenzentrum/libaec",
          "vendor": "Deutsches Klimarechenzentrum",
          "versions": [
            {
              "lessThanOrEqual": "1.1.7",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "HaiND from the Post and Telecommunication Institute of Technology"
        }
      ],
      "datePublic": "2026-11-01T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "libaec through 1.1.7 contains an out-of-bounds read vulnerability in m_se_decode() in src/decode.c that allows attackers to bypass a signed bounds check via an overlong fundamental sequence. Attackers can supply a crafted CCSDS 121.0/SZIP stream with 2^31 or more zero bits to crash the decoder or leak adjacent memory into decoded samples."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "PRESENT",
            "attackVector": "LOCAL",
            "baseScore": 5.8,
            "baseSeverity": "MEDIUM",
            "privilegesRequired": "NONE",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "PASSIVE",
            "vectorString": "CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:P/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "LOW",
            "vulnIntegrityImpact": "NONE"
          },
          "format": "CVSS"
        },
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:H",
            "version": "3.1"
          },
          "format": "CVSS"
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-196",
              "description": "Unsigned to Signed Conversion Error",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-11-02T14:29:13.799Z",
        "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "shortName": "VulnCheck"
      },
      "references": [
        {
          "tags": [
            "issue-tracking"
          ],
          "url": "https://github.com/Deutsches-Klimarechenzentrum/libaec/issues/64"
        },
        {
          "tags": [
            "issue-tracking",
            "patch"
          ],
          "url": "https://github.com/Deutsches-Klimarechenzentrum/libaec/pull/66"
        },
        {
          "tags": [
            "technical-description"
          ],
          "url": "https://github.com/Deutsches-Klimarechenzentrum/libaec/blob/v1.1.7/src/decode.c#L556-L586"
        },
        {
          "name": "libaec v1.1.7 Release Notes",
          "tags": [
            "release-notes"
          ],
          "url": "https://github.com/Deutsches-Klimarechenzentrum/libaec/releases/tag/v1.1.7"
        },
        {
          "tags": [
            "technical-description"
          ],
          "url": "https://hackmd.io/@haindpwn/libaec-se-decode-fs-signedness-oob-read"
        },
        {
          "name": "VulnCheck Advisory: libaec through 1.1.7 Out-of-Bounds Read via m_se_decode() Second Extension Decoder",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://www.vulncheck.com/advisories/libaec-through-1.1.7-out-of-bounds-read-via-m-se-decode-second-extension-decoder"
        }
      ],
      "title": "libaec through 1.1.7 Out-of-Bounds Read via m_se_decode() Second Extension Decoder",
      "x_generator": {
        "engine": "vulncheck-endgame"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
    "assignerShortName": "VulnCheck",
    "cveId": "CVE-2026-120457",
    "datePublished": "2026-11-02T14:29:13.799Z",
    "dateReserved": "2026-11-02T12:42:22.624Z",
    "dateUpdated": "2026-11-02T15:46:06.742Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}