CVE-2026-107815
MariaDB: one byte OOB write in DOS tables of the CONNECT engine
02 Description
MariaDB: one byte OOB write in DOS tables of the CONNECT engine
03 Exploitation and scoring
- Exploitation
- Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
- SSVC decision
- ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
- AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
- Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
- EPSS probability
- 1.38% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 71.9% of scored records. A rank, not a probability.
- NVD base score
- 8.5 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
- NVD analysis status
- Analyzed. NVD last modified this record on 2026-10-14.
- Red Hat severity
- Important. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2026-10-09 16:05Z19 DAYS AGO
- Last updated
- 2026-10-13 17:01Z15 DAYS AGO
- Reserved
- 2026-10-08
- Assigning CNA
- GitHub_M
- Record state
- PUBLISHED
- Severity
- High (CVSS 8.5)
- CNA CVSS vector
- CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
- Weaknesses
- CWE-787Out-of-bounds WriteBase
- Data version
- 5.2
- Document digest
- 676f35529ac58792b12ccc3492b8f60fffd1dfa1ecee152b17b9b014099090ff
05 Affected products
06 References
- github.comhttps://github.com/MariaDB/server/security/advisories/GHSA-4wgx-ffg9-jrwq
- github.comhttps://github.com/MariaDB/server/commit/b369925f6855d3e1f0ebcf453492724b99fda6f8
- github.comhttps://github.com/MariaDB/server/releases/tag/mariadb-10.11.19
- github.comhttps://github.com/MariaDB/server/releases/tag/mariadb-10.6.28
- github.comhttps://github.com/MariaDB/server/releases/tag/mariadb-11.4.13
- github.comhttps://github.com/MariaDB/server/releases/tag/mariadb-11.8.9
- github.comhttps://github.com/MariaDB/server/releases/tag/mariadb-12.3.3
- github.comhttps://github.com/MariaDB/server/releases/tag/mariadb-13.0.2
- jira.mariadb.orghttps://jira.mariadb.org/browse/MDEV-40637
07 Fixed in
Debian 12
- mariadb No fix yet
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- mariadb No fix yet
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- mariadb Fixed in 1:11.8.9+ds-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 16.04 LTS
- mariadb-10.0 No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 18.04 LTS
- mariadb-10.1 No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 20.04 LTS
- mariadb-10.3 No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 22.04 LTS
- mariadb-10.6 No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 24.04 LTS
- mariadb No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 26.04 LTS
- mariadb No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 26.10
- mariadb No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.