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  4. CVE 2026 75893 heap based buffer overflow at ipaccessproxyreadmsg
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Back to active CVEs
High · CVSS 7.5CVE-2026-75893

Heap based buffer overflow at ipaccess_proxy_read_msg()CVE-2026-75893

Answer in brief

CVE-2026-75893 records a High severity (CVSS 7.5) vulnerability in Heap based buffer overflow at ipaccess_proxy_read_msg(). The current sources do not mark it as known exploited. The current feed maps Osmocom/osmo-bsc (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Sep 18, 2026Updated Sep 21, 2026Source checked Nov 3, 2026First seen by HOL Sep 18, 2026Material review Sep 21, 2026
Upstream Advisory

Key facts

Risk
High · CVSS 7.5
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Available

Why this deserves its current priority

CVSS is 7.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Osmocom/osmo-bsc (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Osmocom/osmo-bscgeneric>=1.0.1 <1.14.11.14.1

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Osmocom/osmo-bsc.
  2. 2Review the reported fix. Update Osmocom/osmo-bsc to 1.14.1 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Sep 18, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Sep 21, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Sep 18, 2026

Sources and claim methodology

  • Source referencecgit.osmocom.org
Upstream source description

In osmo-bsc from 1.0.1 through 1.14.1 a heap based buffer overflow issue was found in the ipaccess_proxy_read_msg()  function via IPA frame lengths.

Quoted source text, attributed separately from HOL analysis.

Record context

Vulnerability class
Buffer Overflow
EPSS
Not reported
CWE IDs
CWE-122
Source
CVE List V5
Source checked
Nov 3, 2026
References
1 linked source
Open source record