Is CVE-2026-35549 in the CISA KEV catalog?

No. CVE-2026-35549 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-35549?

CVE-2026-35549 has a CVSS v3 base score of 6.5 (Moderate).

What is the EPSS score for CVE-2026-35549?

CVE-2026-35549 has an EPSS score of 0.26% (17th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2026-35549?

Upgrade mariadb on debian 13 to 1:11.8.6-0+deb13u1 or later. Fixes are available for 2 affected products.

CVE & CISA-KEV Catalog

CVE-2026-35549

MEDIUM

6.5

CVSS v3

NVD

Description

An issue was discovered in MariaDB Server before 11.4.10, 11.5.x through 11.8.x before 11.8.6, and 12.x before 12.2.2. If the caching_sha2_password authentication plugin is installed, and some user accounts are configured to use it, a large packet can crash the server because sha256_crypt_r uses alloca.

CWE-789

How to fix

Remediation Available

mariadbDebian

Fixed in:1:11.8.6-0+deb13u1CVE-2026-35549

Fixed in:1:11.8.6-1CVE-2026-35549

MariaDBWindows application

Affected:11.5.0 11.8.6Fixed in:11.8.6MariaDB Corporation Ab

Affected:11.4.10Fixed in:11.4.10MariaDB Corporation Ab

Affected:12.0.0 12.2.2Fixed in:12.2.2MariaDB Corporation Ab

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 RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

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

Exploit Intelligence

0.26%probability of exploitation in 30 days

17thpercentile

Low risk: more likely to be exploited than 17% of all known CVEs.

References

Issue Tracking1

jira.mariadb.org

Related Vulnerabilities

Other CWE-789 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2022-30522	High	7.5	90%	-	Fix
CVE-2026-49975	High	7.5	11%	-	Fix
CVE-2025-27533	High	7.5	8.6%	-	Fix
CVE-2017-7651	High	7.5	5.3%	-	Fix
CVE-2021-31811	Medium	5.5	3.4%	-	-
CVE-2021-27906	Medium	5.5	3.3%	-	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 2026-06-02.