Is CVE-2026-10098 in the CISA KEV catalog?

No. CVE-2026-10098 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-10098?

CVE-2026-10098 has a CVSS v3 base score of 5.3 (Moderate).

What is the EPSS score for CVE-2026-10098?

CVE-2026-10098 has an EPSS score of 0.12% (2th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2026-10098?

Upgrade wolfssl to 5.9.2 or later.

CVE & CISA-KEV Catalog

CVE-2026-10098

MEDIUM

5.3

CVSS v3

NVD

Description

OCSP CertID serial-number length-confusion in wolfSSL_OCSP_resp_find_status allows a same-issuer SingleResponse whose serial is a prefix of the target serial to be reported as the revocation status of a different certificate. The lookup compared serial-number bytes without first requiring the two serial numbers to be of equal length, so a SingleResponse for one certificate (same issuer) whose serial is a prefix of the target's serial would match, returning the wrong certificate's status. The fix requires the serial lengths to be equal before comparing the serial bytes.

CWE-295Improper Certificate Validation

How to fix

Remediation Available

wolfsslNVD

Affected:>= 4.6.0, < 5.9.2Fixed in:5.9.2CVE-2026-10098derived from NVD

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

ConfidentialityNone

IntegrityLow

AvailabilityNone

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

Exploit Intelligence

0.12%probability of exploitation in 30 days

2ndpercentile

Low risk: more likely to be exploited than 2% of all known CVEs.

References

Patch1

github.com

Vendor Advisory1

wolfssl.com

Embed a live status badge for CVE-2026-10098

Markdown

[![CVE-2026-10098](https://tridentstack.com/cve/badge/CVE-2026-10098.svg)](https://tridentstack.com/cve/CVE-2026-10098)

HTML

<a href="https://tridentstack.com/cve/CVE-2026-10098"><img src="https://tridentstack.com/cve/badge/CVE-2026-10098.svg" alt="CVE-2026-10098"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

Start free

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 2026-06-27.