VULNERABILITY INTELLIGENCE
CVE-2021-26690
CVSS score7.5 HIGH
EPSS probability65.31%
CISA KEVNot currently listed
Published2021-06-10
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Description
Apache HTTP Server versions 2.4.0 to 2.4.46 A specially crafted Cookie header handled by mod_session can cause a NULL pointer dereference and crash, leading to a possible Denial Of Service
Weakness classification
- CWE-476: NULL Pointer Dereference
Primary references
- security@apache.org — Release Notes, Vendor Advisory
- security@apache.org — Mailing List, Third Party Advisory
- security@apache.org
- security@apache.org
- security@apache.org — Mailing List, Vendor Advisory
- security@apache.org — Mailing List, Third Party Advisory
- security@apache.org
- security@apache.org
- security@apache.org — Third Party Advisory
- security@apache.org — Third Party Advisory
- security@apache.org — Mailing List, Third Party Advisory
- security@apache.org — Third Party Advisory