CVE-2021-26691

ADVISORY - nist

Summary

In Apache HTTP Server versions 2.4.0 to 2.4.46 a specially crafted SessionHeader sent by an origin server could cause a heap overflow

EPSS Score⁠: 0.38426 (0.971)

Common Weakness Enumeration (CWE)

ADVISORY - nist

CWE-122⁠

Heap-based Buffer Overflow

CWE-787⁠

Out-of-bounds Write

ADVISORY - redhat

CWE-119⁠

Improper Restriction of Operations within the Bounds of a Memory Buffer

Impacted images

Advisories

NIST

CREATED

5 years ago

UPDATED

1 year ago

ADVISORY IDCVE-2021-26691⁠

EXPLOITABILITY SCORE

3.9

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)

CWE-122⁠CWE-787⁠

CVSS SCORE

9.8critical

Alpine

CREATED

5 years ago

UPDATED

5 days ago

ADVISORY IDCVE-2021-26691⁠

EXPLOITABILITY SCORE

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

RATING UNAVAILABLE FROM ADVISORY

Debian

CREATED

5 years ago

UPDATED

2 months ago

ADVISORY IDCVE-2021-26691⁠

EXPLOITABILITY SCORE

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

RATING UNAVAILABLE FROM ADVISORY

Ubuntu

CREATED

5 years ago

UPDATED

9 months ago

ADVISORY IDCVE-2021-26691⁠

EXPLOITABILITY SCORE

3.9

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

CVSS SCORE

9.8medium

Alma

CREATED

4 years ago

UPDATED

4 years ago

ADVISORY IDALSA-2021:3816⁠

EXPLOITABILITY SCORE

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

CVSS SCORE

N/Ahigh

Amazon

CREATED

4 years ago

UPDATED

4 years ago

ADVISORY IDALAS-2021-1514⁠

EXPLOITABILITY SCORE

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

CVSS SCORE

N/Amedium

Amazon

CREATED

4 years ago

UPDATED

4 years ago

ADVISORY IDALAS2-2021-1674⁠

EXPLOITABILITY SCORE

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

CVSS SCORE

N/Amedium

Bitnami

CREATED

2 years ago

UPDATED

2 years ago

ADVISORY ID

BIT-2021-26691

EXPLOITABILITY SCORE

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

CVSS SCORE

N/Acritical

Bitnami

CREATED

2 years ago

UPDATED

7 months ago

ADVISORY ID

BIT-apache-2021-26691

EXPLOITABILITY SCORE

3.9

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

CVSS SCORE

9.8critical

Red Hat

CREATED

5 years ago

UPDATED

9 months ago

ADVISORY IDCVE-2021-26691⁠

EXPLOITABILITY SCORE

2.2

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)

CWE-119⁠

CVSS SCORE

8.1medium

Rocky

CREATED

4 years ago

UPDATED

9 months ago

ADVISORY IDRLSA-2021:3816⁠

EXPLOITABILITY SCORE

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

CVSS SCORE

N/Ahigh

Oracle

CREATED

4 years ago

UPDATED

4 years ago

ADVISORY IDELSA-2021-3816⁠

EXPLOITABILITY SCORE

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

CVSS SCORE

N/Ahigh

Oracle

CREATED

4 years ago

UPDATED

4 years ago

ADVISORY IDELSA-2022-0143⁠

EXPLOITABILITY SCORE

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

CVSS SCORE

N/Ahigh