Is CVE-2026-48913 in the CISA KEV catalog?

No. CVE-2026-48913 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-48913?

CVE-2026-48913 has a CVSS v3 base score of 7.3 (Moderate).

What is the EPSS score for CVE-2026-48913?

CVE-2026-48913 has an EPSS score of 0.46% (37th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2026-48913?

Upgrade apache2 on debian 11 to 2.4.67-1~deb11u3 or later. Fixes are available for 8 affected products.

CVE & CISA-KEV Catalog

CVE-2026-48913

MEDIUM

7.3

CVSS v3

NVD

Description

Use After Free vulnerability in Apache HTTP Server module mod_http2 when file handles are already exhausted. This issue affects Apache HTTP Server: from 2.4.55 through 2.4.67.

CWE-416Use After Free

How to fix

Remediation Available

apache2Debian

Fixed in:2.4.67-1~deb11u3CVE-2026-48913

Fixed in:2.4.68-1CVE-2026-48913

mod_http2Red Hat / RHEL

Fixed in:0:2.0.29-4.el10_2.2RHSA-2026:34355

mod_http2Rocky

Fixed in:0:2.0.29-4.el10_2.2RHSA-2026:34355

mod_http2-debuginfoRocky

Fixed in:0:2.0.29-4.el10_2.2RHSA-2026:34355

mod_http2-debuginfoRed Hat / RHEL

Fixed in:0:2.0.29-4.el10_2.2RHSA-2026:34355

mod_http2-debugsourceRocky

Fixed in:0:2.0.29-4.el10_2.2RHSA-2026:34355

mod_http2-debugsourceRed Hat / RHEL

Fixed in:0:2.0.29-4.el10_2.2RHSA-2026:34355

Apache Lounge httpdWindows application

Affected:2.4.55 2.4.68Fixed in:2.4.68Apache Lounge

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityLow

IntegrityLow

AvailabilityLow

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:U

Exploit Intelligence

0.46%probability of exploitation in 30 days

37thpercentile

Low risk: more likely to be exploited than 37% of all known CVEs.

References

Vendor Advisory1

httpd.apache.org

Third-Party Advisory1

openwall.com

Related Vulnerabilities

Other CWE-416 (Use After Free) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2019-0708	Critical	9.8	100%	KEV + Ransom	-
CVE-2021-31166	Critical	9.8	100%	KEV	Fix
CVE-2015-5119	Critical	9.8	99%	KEV	-
CVE-2010-3962	High	8.1	97%	KEV	-
CVE-2015-0313	Critical	9.8	96%	KEV	Fix
CVE-2017-9798	High	7.5	95%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-06-10.