What’s Vulnerable › Vulnerabilities
CVE-2021-22982
- Severity: high (CVSS 7.2 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 1.0% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2021-02-12 · updated 2026-06-17
- Weakness: CWE-120
Description
On BIG-IP DNS and GTM version 13.1.x before 13.1.0.4, and all versions of 12.1.x and 11.6.x, big3d does not securely handle and parse certain payloads resulting in a buffer overflow. Note: Software versions which have reached End of Software Development (EoSD) are not evaluated.
Affected products
- F5 BIG-IP DNS: from 12.1.0 through 12.1.5; from 13.1.0 before 13.1.0.4 — fixed in 13.1.0.4
- F5 Big-Ip Global Traffic Manager: from 11.6.1 through 11.6.5
How to fix
Upgrade to a fixed version: F5 BIG-IP DNS 13.1.0.4. Check the vendor advisory for mitigations.
References
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