Is CVE-2026-48864 in the CISA KEV catalog?

No. CVE-2026-48864 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-48864?

CVE-2026-48864 has a CVSS v3 base score of 7.8 (Important).

What is the EPSS score for CVE-2026-48864?

CVE-2026-48864 has an EPSS score of 0.21% (11th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2026-48864?

Upgrade libsolv on rhel 10 to 0:0.7.33-5.el10_2 or later. Fixes are available for 26 affected products.

CVE & CISA-KEV Catalog

CVE-2026-48864

HIGH

7.8

CVSS v3

NVD

Description

A flaw was found in libsolv. This heap buffer overflow occurs during the decompression of attacker-controlled compressed data within `.solv` files due to insufficient input validation. An attacker can provide a specially crafted `.solv` file, which, when processed by a vulnerable application, can lead to out-of-bounds memory access. This could result in information disclosure, alteration of program execution, or a denial of service.

CWE-787Out-of-bounds Write

How to fix

Remediation Available

libsolvRed Hat / RHEL

Fixed in:0:0.7.33-5.el10_2RHSA-2026:28236

Fixed in:main@x86_64RHSA-2026:21333

Fixed in:main@srcRHSA-2026:21333

Fixed in:main@aarch64RHSA-2026:21333

libsolvRocky

Fixed in:0:0.7.33-5.el10_2RHSA-2026:28236

Fixed in:main@aarch64RHSA-2026:21333

Fixed in:main@srcRHSA-2026:21333

Fixed in:main@x86_64RHSA-2026:21333

libsolv-debuginfoRed Hat / RHEL

Fixed in:0:0.7.33-5.el10_2RHSA-2026:28236

libsolv-debuginfoRocky

Fixed in:0:0.7.33-5.el10_2RHSA-2026:28236

libsolv-debugsourceRed Hat / RHEL

Fixed in:0:0.7.33-5.el10_2RHSA-2026:28236

libsolv-debugsourceRocky

Fixed in:0:0.7.33-5.el10_2RHSA-2026:28236

libsolv-demo-debuginfoRed Hat / RHEL

Fixed in:0:0.7.33-5.el10_2RHSA-2026:28236

libsolv-demo-debuginfoRocky

Fixed in:0:0.7.33-5.el10_2RHSA-2026:28236

libsolv-develRocky

Fixed in:0:0.7.33-5.el10_2RHSA-2026:28236

libsolv-develRed Hat / RHEL

Fixed in:0:0.7.33-5.el10_2RHSA-2026:28236

libsolv-toolsRocky

Fixed in:0:0.7.33-5.el10_2RHSA-2026:28236

libsolv-toolsRed Hat / RHEL

Fixed in:0:0.7.33-5.el10_2RHSA-2026:28236

libsolv-tools-baseRocky

Fixed in:0:0.7.33-5.el10_2RHSA-2026:28236

libsolv-tools-baseRed Hat / RHEL

Fixed in:0:0.7.33-5.el10_2RHSA-2026:28236

libsolv-tools-base-debuginfoRed Hat / RHEL

Fixed in:0:0.7.33-5.el10_2RHSA-2026:28236

libsolv-tools-base-debuginfoRocky

Fixed in:0:0.7.33-5.el10_2RHSA-2026:28236

libsolv-tools-debuginfoRocky

Fixed in:0:0.7.33-5.el10_2RHSA-2026:28236

libsolv-tools-debuginfoRed Hat / RHEL

Fixed in:0:0.7.33-5.el10_2RHSA-2026:28236

perl-solv-debuginfoRocky

Fixed in:0:0.7.33-5.el10_2RHSA-2026:28236

perl-solv-debuginfoRed Hat / RHEL

Fixed in:0:0.7.33-5.el10_2RHSA-2026:28236

python3-solvRed Hat / RHEL

Fixed in:0:0.7.33-5.el10_2RHSA-2026:28236

python3-solvRocky

Fixed in:0:0.7.33-5.el10_2RHSA-2026:28236

python3-solv-debuginfoRocky

Fixed in:0:0.7.33-5.el10_2RHSA-2026:28236

python3-solv-debuginfoRed Hat / RHEL

Fixed in:0:0.7.33-5.el10_2RHSA-2026:28236

ruby-solv-debuginfoRocky

Fixed in:0:0.7.33-5.el10_2RHSA-2026:28236

ruby-solv-debuginfoRed Hat / RHEL

Fixed in:0:0.7.33-5.el10_2RHSA-2026:28236

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 VectorLocal

Attack ComplexityLow

Privileges RequiredNone

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

0.21%probability of exploitation in 30 days

11thpercentile

Low risk: more likely to be exploited than 11% of all known CVEs.

References

Exploit1

bugzilla.redhat.com

Third-Party Advisory2

Other references1

access.redhat.com

Related Vulnerabilities

Other CWE-787 (Out-of-bounds Write) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2025-22457	Critical	9.0	100%	KEV + Ransom	Fix
CVE-2025-0282	Critical	9.0	100%	KEV + Ransom	-
CVE-2015-3113	Critical	9.8	100%	KEV	Fix
CVE-2021-20038	Critical	9.8	100%	KEV + Ransom	-
CVE-2023-4863	High	8.8	100%	KEV	Fix
CVE-2020-16040	Medium	6.5	100%	-	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 2026-06-24.