CVE-2026-111148libsidplayfp through 3.1.1 Heap Out-of-Bounds Read via SidTuneBase::acceptSidTune
- 6.8MediumCVSS base score
- 0.13%Exploitation in 30 daysEPSS · top 98% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- YesPublic exploitsa reference or SSVC says so
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.
Public exploit
An exploit or proof of concept is public: anyone can try it against an unpatched system. A reference of the record is tagged as an exploit. CISA's SSVC rates its exploitation: a proof of concept is public.
Show the exploits1
References tagged exploit1 reference
- https://hackmd.io/@haind-pwn/libsidplayfp-psid-dataoffset-underflow-oob-read (opens in a new tab)technical-descriptionexploit
Timeline
ID reserved
By VulnCheck
Published
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| VulnCheckCNA (assigner) | 4.0 | Medium6.8 | CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N |
| VulnCheckCNA (assigner) | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |
| NVDNVD · Deferred | 4.0 | Medium6.8 | CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
- EPSS (exploitation in 30 days)
- 0.13% · top 98% of all CVEs (15 Nov 2026)
- CISA SSVC
- Exploitation: poc · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.8.
Affected products
- affected ≤ 3.1.1
References
References5
- https://hackmd.io/@haind-pwn/libsidplayfp-psid-dataoffset-underflow-oob-read (opens in a new tab)technical-descriptionexploit
- https://github.com/libsidplayfp/libsidplayfp/blob/732fa8ec8131fc75aafc2eaea583ddcdeea2a3cc/src/sidtune/SidTuneBase.cpp#L295-L300 (opens in a new tab)technical-description
- https://github.com/libsidplayfp/libsidplayfp/blob/732fa8ec8131fc75aafc2eaea583ddcdeea2a3cc/src/sidtune/SidTuneBase.cpp#L488-L500 (opens in a new tab)technical-description
- https://github.com/libsidplayfp/libsidplayfp (opens in a new tab)product
- VulnCheck Advisory: libsidplayfp through 3.1.1 Heap Out-of-Bounds Read via SidTuneBase::acceptSidTune (opens in a new tab)third-party-advisory
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-102275 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-111148)Record last updated .