Vulnerability

CVE-2026-48913

High· 7.3CVSS7.3EPSS0%

.rules3/5

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.

Threat signal

75/100

High

Severity

high

CVSS

7.3

EPSS

Active

CVSS

v3.1via NVDOpen in FIRST calculator →

7.3/ 10HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

Attack VectorNetworkExploitable remotely over the internet — no local access needed.
Attack ComplexityLowNo special conditions — exploit works reliably.
Privileges RequiredNoneUnauthenticated — no credentials needed.
User InteractionNoneFully automated — no victim action needed.
ScopeUnchangedImpact contained to the vulnerable component.
Confidentiality ImpactLowSome data disclosure; attacker doesn't fully control what.
Integrity ImpactLowSome data modification; attacker doesn't fully control extent.
Availability ImpactLowReduced performance / interruptions.

EPSS

Exploit prediction · 30-day horizonFIRST.org →

0.10%

probability of exploitation in next 30 days

p27

higher than 27% of all CVEs

3-day trend↑ 0.1pp

Low exploitation likelihood — defer if no other signals fire.

Vendor VEX

No VEX statements published for CVE-2026-48913. Vendors publish VEX (Vulnerability Exploitability eXchange) to assert per-product whether a CVE is actually exploitable in their distribution.

SSVCTrack

Total impact on non-trivial mission systems

exploitation: none
automatable: no
impact: total
mission: support

Lifecycle

2026-06-08Published
2026-06-10Last modified1 source
2026-06-11Vendor advisory · microsoftCVE-2026-48913 — Apache HTTP Server: mod_http2 memory corruption when file handles exhausted

Entity graph

2 nodes · 1 edges · click to pivot

CVEActorVendor advisoryIOCNews

Vendor advisories

microsoftCVE-2026-48913Apache HTTP Server: mod_http2 memory corruption when file handles exhausted

References

No source-event history recorded yet. New revisions will appear here as ingestors re-fetch this CVE.