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HIGH severity

CVE-2026-103109

HIGH

CVE-2026-103109 is a high-severity (CVSS 7.7) Out-of-bounds Write vulnerability. No vendor fix is recorded yet; mitigation options are listed below.

Pexip Infinity before 38.2, plus 39.0, 39.1 and 40.0, is affected by improper input validation in the media implementation that allows a remote attacker to trigger memory corruption…

Published
Updated
Affected
1 product
Patched
See advisory
Exploits
None indexed
Exploitation data as of Oct 5, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Exploitation Status

No confirmed exploitation observed yet

  • CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.

Exploitation and automatability from CISA’s SSVC triage for CVE-2026-103109.

EPSS Exploitation Probability

via FIRST.org ↗
0.2%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs14th percentile — riskier than 14% of all scored CVEsHighest risk
0.00%0.25%0.50%0.74%0.2%0.2%Oct 26Oct 26

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

CVE-2026-103109 by exploitation likelihood (EPSS) against impact (CVSS). Outside the shaded patch-first corner.

Where this sits among everything scored

Of 382,621 CVEs with a current EPSS score, this one falls in the < 10% band (highlighted). Counts from FIRST.org, log-scaled.

Description

Pexip Infinity before 38.2, plus 39.0, 39.1 and 40.0, is affected by improper input validation in the media implementation that allows a remote attacker to trigger memory corruption or a software abort resulting in a denial of service. A crafted media stream may result in a controlled abort during processing, and has the potential to achieve memory corruption.

Affected Products

1 product · 3 configurations
Application
pexip infinitypexip
≥ 39.0 && ≤ 39.1
1 version
40.0

Detection & mitigation playbook

Vulnerability

  1. Detect

    Identify every host running the affected component and compare the installed build against the fixed version below — for source-built or distro-packaged software the version string, not a lockfile, is the source of truth (`dpkg -l`, `rpm -q`, or the binary's own `--version`).

  2. Remediation status

    No fixed release is recorded for CVE-2026-103109 yet. Track the upstream advisory, and apply the exposure-reduction steps below in the meantime.

  3. Mitigate without a patch

    Constrain what reaches the vulnerable code: limit the size and shape of untrusted input, isolate the affected component in a sandboxed or least-privileged process, and enable the platform's memory-safety mitigations (ASLR, stack protector, hardened allocator) so an out-of-bounds access is more likely to fail closed than to be exploitable.

Frequently Asked Questions

Pexip Infinity before 38.2, plus 39.0, 39.1 and 40.0, is affected by improper input validation in the media implementation that allows a remote attacker to trigger memory corruption or a software abort resulting in a denial of service. A crafted media stream may result in a controlled abort during processing, and has the potential to achieve memory corruption.
O3 Security · Impact-Aware SCA

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CVE-2026-103109: Memory Corruption | O3 Security