CVE-2026-111148 libsidplayfp through 3.1.1 Heap Out-of-Bounds Read via SidTuneBase::acceptSidTune
Attackers can crash applications using libsidplayfp by providing a malicious PSID/RSID file with an unchecked data offset causing a heap out-of-bounds read.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-111148?
CVE-2026-111148 is a medium-severity memory corruption vulnerability in libsidplayfp, published on 15 Oct 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
libsidplayfp through 3.1.1 contains a heap out-of-bounds read vulnerability that allows attackers to crash applications by supplying a PSID/RSID file with an unchecked data offset. Attackers can set the header data offset beyond the file size, wrapping the length calculation so resolveAddrs() reads up to 64 KiB past the heap buffer.
Weakness: CWE-125
Which versions are affected by CVE-2026-111148?
How do I fix CVE-2026-111148?
No fix has been published for CVE-2026-111148 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-111148 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-111148 exists.
Sources
Also known as DEBIAN-CVE-2026-111148, GHSA-j964-63vc-3mhh, UBUNTU-CVE-2026-111148.