Is CVE-2023-49262 in the CISA KEV catalog?

No. CVE-2023-49262 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2023-49262?

CVE-2023-49262 has a CVSS v3 base score of 9.8 (CRITICAL).

What is the EPSS score for CVE-2023-49262?

CVE-2023-49262 has an EPSS score of 0.67% (47th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2023-49262?

Upgrade h8951-4g-esp firmware to 2310271149 or later.

CVE & CISA-KEV Catalog

CVE-2023-49262

CRITICAL

9.8

CVSS v3

NVD

Description

The authentication mechanism can be bypassed by overflowing the value of the Cookie "authentication" field, provided there is an active user session.

CWE-190Integer Overflow CWE-287Improper Authentication

How to fix

Remediation Available

h8951-4g-esp firmwareNVD

Affected:< 2310271149Fixed in:2310271149CVE-2023-49262derived 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

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

0.67%probability of exploitation in 30 days

47thpercentile

Moderate risk: more likely to be exploited than 47% of all known CVEs.

References

Third-Party Advisory2

Related Vulnerabilities

Other CWE-190 (Integer Overflow) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2020-16040	Medium	6.5	100%	-	Fix
CVE-2019-11477	High	7.5	99%	-	Fix
CVE-2023-44443	High	7.8	94%	-	Fix
CVE-2014-0569	High	9.3	90%	-	-
CVE-2017-3599	High	7.5	90%	-	Fix
CVE-2023-21716	Critical	9.8	82%	-	Fix

Embed a live status badge for CVE-2023-49262

Markdown

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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 2025-06-03.