PatchSiren

PatchSiren cyber security CVE debrief

CVE-2026-104596 Osmocom CVE debrief

CVE-2026-104596 is a vulnerability in libosmocore through 1.14.1, allowing remote attackers to obtain sensitive information due to out-of-bounds reads in the GSM 04.80 supplementary-service component parsers. This vulnerability affects systems using libosmocore, and defenders should assess exposure and prioritize verification and updates. The CVE record and NVD entry provide limited information about the vulnerability, and further verification is required to determine the affected versions and potential impact.

Vendor
Osmocom
Product
libosmocore
CVSS
Unknown
CISA KEV
Not listed in stored evidence
Original CVE published
2026-10-26
Original CVE updated
2026-10-27
Advisory published
2026-10-26
Advisory updated
2026-10-27

Who should care

Defenders responsible for systems using libosmocore should assess exposure and prioritize verification and updates. This includes operators, platform administrators, vulnerability management teams, and security teams who need to ensure that libosmocore is updated to a secure version to prevent potential information disclosure.

Why it matters

CVE-2026-104596 is a vulnerability in libosmocore that allows remote attackers to obtain sensitive information. Defenders should prioritize verifying and updating libosmocore, assessing exposure in systems using this library, and monitoring for potential information disclosure.

  • Potential information disclosure
  • Verification of libosmocore version required
  • Assessment of exposure in systems using this library

Technical summary

The vulnerability is caused by out-of-bounds reads in the GSM 04.80 supplementary-service component parsers in src/gsm/gsm0480.c, allowing remote attackers to obtain sensitive information. The affected product is libosmocore through version 1.14.1. Defenders should prioritize verifying and updating libosmocore to a secure version, assessing exposure in systems using this library.

Defensive priority

Defenders should prioritize verifying and updating libosmocore to a secure version, assessing exposure in systems using this library.

Recommended defensive actions

  • Verify and update libosmocore to a secure version
  • Assess exposure in systems using this library
  • Monitor for potential information disclosure

Evidence notes

The CVE record and NVD entry provide limited information about the vulnerability. Further verification is required to determine the affected versions and potential impact.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-104596 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-104596

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-104596 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-104596

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.