CVE-2021-26691Not scoredCWE-122

CVE-2021-26691: Apache HTTP Server mod_session response handling heap overflow

Apache Software Foundation · Apache HTTP Server

Vendor fix available · Affected: Apache Software Foundation Apache HTTP Server · Exploitation: likely to be exploited (10% or more)

Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.

68.1%probability of exploitation in the next 30 days

99th percentile

050100

Higher than 99% of scored CVEs

Not scored yet. The CVE record carries no CVSS score.

DescriptionCVE.org

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

Affected products1

From the CVE record. A product or version that is not listed is unknown, not unaffected.

Apache Software Foundation · Apache HTTP Server2.4.46; 2.4.43; 2.4.41; 2.4.39; 2.4.38; 2.4.37 and 23 more

On the Atlas

Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.

Open the Atlas

Exploitation: Likely to be exploited (10% or more). EPSS gives it a 10% or higher chance of exploitation in the next 30 days.
CISA KEV: Not listed
Public check: No public nuclei template
Weakness: Heap-based Buffer Overflow · Memory Corruption
Vendor: Apache Software Foundation
Published: June 2021
Band: Likely to be exploited (10% or more), June 2021

CoverageNo articles yet

No CyberSIXT article names CVE-2021-26691 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.

References

1 more reference is in the CVE record.