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CVE-2025-8865VulnerabilityPublished

CVE-2025-8865: YugabyteDB · NULL Pointer Dereference

Affects YugabyteDBSource CVE Database V5

0

Not known to be exploited · CVSS 4.1 Medium.

Data as of 26 Oct 2026, 07:57 UTC

CVSS 4.0 base score
4.1Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.1% chance of exploitation in 30 days – higher than 5% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:4.0/AV:A/AC:H/AT:P/PR:H/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 11 Aug 2025

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-26.

What to do

Affected software

ProductAffectedFixed in
YugabyteDB Inc YugabyteDBAffected
  • =2024.1.0.0
  • =2024.2.0.0
  • =2.20.0.0
Fixed in–

AI-suggested

1. Restrict access to YCQL interfaces strictly to trusted and authenticated users with the minimum necessary privileges to reduce the risk of exploitation. 2. Implement robust monitoring and alerting for unusual query patterns or tablet server crashes to detect potential exploitation attempts early. 3. Apply network segmentation and firewall rules to limit exposure of YugabyteDB tablet servers to only essential systems and users. 4. Follow YugabyteDB vendor advisories closely and apply patches or updates promptly once available. 5. Conduct regular security audits and penetration testing focusing on database access controls and query handling to identify potential weaknesses. 6. Consider deploying failover and redundancy mechanisms to minimize service disruption in case of tablet server crashes. 7. Educate privileged users on secure query practices and the risks of malformed inputs to reduce accidental triggering of the vulnerability.

Description

The YugabyteDB tablet server contains a flaw in its YCQL query handling that can trigger a null pointer dereference when processing certain malformed inputs. An authenticated attacker could exploit this issue to crash the YCQL tablet server, resulting in a denial of service.

References

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