Buffer overflow in Symisc Unqlite
CVE-2025-3791
A vulnerability classified as critical was found in symisc UnQLite up to 957c377cb691a4f617db9aba5cc46d90425071e2. This vulnerability affects the function jx9MemObjStore of the file /data/src/benchmarks/unqlite/unqlite.c. The manipulation leads to heap-based buffer overflow. It is possible to launch the attack on the local host. The exploit has been disclosed to the public and may be used. Continious delivery with rolling releases is used by this product. Therefore, no version details of affected nor updated releases are available.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.002 (11.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 11th percentile — 11.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: +0.000
Affected products
- Symisc Unqlite — versions 957c377cb691a4f617db9aba5cc46d90425071e2
Weakness classification (CWE)
References
- vuldb.com/ (technical-description, vdb-entry)
- vuldb.com/ (signature, permissions-required)
- vuldb.com/ (third-party-advisory)
- github.com/symisc/unqlite/issues/173 (issue-tracking)
- github.com/user-attachments/files/19652580/unqlite-reproduce-heap-overflow.zip (exploit)
Frequently asked questions
- What is CVE-2025-3791?
- CVE-2025-3791 is a medium-severity vulnerability in Symisc Unqlite, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 5.3/10. Published 2025-04-18.
- How severe is CVE-2025-3791?
- Medium severity. CVSS v3 base score is 5.3 out of 10.