Out-of-bounds write in libcodec2secevrcdec.so prior to SMR Sep-2026 Release 1 allows local attackers to write out-of-bounds memory. (CVE-2026-21091)
CVE-2026-21091 is an out-of-bounds write vulnerability in the libcodec2secevrcdec.so component affecting versions prior to SMR Sep-2026 Release 1. This flaw allows local attackers to write memory outside the intended bounds, potentially leading to memory corruption. The vulnerability requires local access and low privileges to exploit. No known exploits are reported in the wild. The severity is assessed as medium based on available information.
AI Analysis
Technical Summary
This vulnerability involves an out-of-bounds write in the libcodec2secevrcdec.so library prior to the SMR Sep-2026 Release 1. Local attackers with low privileges can exploit this flaw to write outside allocated memory bounds, which may cause memory corruption or other unintended behavior. The vulnerability does not require user interaction and has a moderate impact on confidentiality, integrity, and availability. No patch information is provided, and no known exploits are currently active.
Potential Impact
Local attackers with low privileges can perform out-of-bounds memory writes, potentially leading to memory corruption. The vulnerability impacts confidentiality, integrity, and availability to a limited extent. There are no reports of active exploitation in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or workaround information is provided in the available data.
Out-of-bounds write in libcodec2secevrcdec.so prior to SMR Sep-2026 Release 1 allows local attackers to write out-of-bounds memory. (CVE-2026-21091)
Description
CVE-2026-21091 is an out-of-bounds write vulnerability in the libcodec2secevrcdec.so component affecting versions prior to SMR Sep-2026 Release 1. This flaw allows local attackers to write memory outside the intended bounds, potentially leading to memory corruption. The vulnerability requires local access and low privileges to exploit. No known exploits are reported in the wild. The severity is assessed as medium based on available information.
CVSS v4.0
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves an out-of-bounds write in the libcodec2secevrcdec.so library prior to the SMR Sep-2026 Release 1. Local attackers with low privileges can exploit this flaw to write outside allocated memory bounds, which may cause memory corruption or other unintended behavior. The vulnerability does not require user interaction and has a moderate impact on confidentiality, integrity, and availability. No patch information is provided, and no known exploits are currently active.
Potential Impact
Local attackers with low privileges can perform out-of-bounds memory writes, potentially leading to memory corruption. The vulnerability impacts confidentiality, integrity, and availability to a limited extent. There are no reports of active exploitation in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or workaround information is provided in the available data.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-qcmf-r392-w7x4
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-21091"]
- Ecosystems
- []
- Database Specific Severity
- MODERATE
- Cvss Version
- 4.0
Threat ID: 6aa15f7cacd9273b4961838e
Added to database: 09/09/2026, 13:30:36 UTC
Last enriched: 09/09/2026, 13:57:47 UTC
Last updated: 09/09/2026, 20:52:00 UTC
Views: 2
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