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CVE

CVE-2026-27853

CVE-2026-27853 dnsdist
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CVE

CVE-2026-27853

CVE-2026-27853 dnsdist

An attacker might be able to trigger an out-of-bounds write by sending crafted DNS responses to a DNSdist using the DNSQuestion:changeName or DNSResponse:changeName methods in custom Lua code. In some cases the rewritten packet might become larger than the initial response and even exceed 65535 bytes, potentially leading to a crash resulting in denial of service.

Package Versions Affected

Package Version
patch Availability
No items found.

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CVSS Version

Severity
Base Score
CVSS Version
Score Vector
C
H
U
5.9
-
3.1
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
C
H
U
-
C
H
U
-

Related Resources

No items found.

References

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-27853

Severity

7.5

CVSS Score
0
10

Basic Information

Ecosystem
Base CVSS
7.5
EPSS Probability
0.00014%
EPSS Percentile
0.02686%
Introduced Version
0
Fix Available
1.9.14-0+deb13u1,2.0.4-r0

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