CVE-2018-5744
A failure to free memory can occur when processing messages having a specific combination of EDNS options.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (3.38%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
A failure to free memory can occur when processing messages having a specific combination of EDNS options. Versions affected are: BIND 9.10.7 -> 9.10.8-P1, 9.11.3 -> 9.11.5-P1, 9.12.0 -> 9.12.3-P1, and versions 9.10.7-S1 -> 9.11.5-S3 of BIND 9 Supported Preview Edition. Versions 9.13.0 -> 9.13.6 of the 9.13 development branch are also affected.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 3.38% probability · 89th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-772
- Affected
- isc/bind
- Source
- security-officer@isc.org
EPSS 3.4% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://kb.isc.org/docs/cve-2018-5744Vendor Advisory
- https://kb.isc.org/docs/cve-2018-5744Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.