Is CVE-2023-49253 in the CISA KEV catalog?

No. CVE-2023-49253 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2023-49253?

CVE-2023-49253 has a CVSS v3 base score of 9.8 (CRITICAL).

What is the EPSS score for CVE-2023-49253?

CVE-2023-49253 has an EPSS score of 0.56% (42th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2023-49253?

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

CVE & CISA-KEV Catalog

CVE-2023-49253

CRITICAL

9.8

CVSS v3

NVD

Description

Root user password is hardcoded into the device and cannot be changed in the user interface.

CWE-798Hard-coded Credentials

How to fix

Remediation Available

h8951-4g-esp firmwareNVD

Affected:< 2310271149Fixed in:2310271149CVE-2023-49253derived 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

0.56%probability of exploitation in 30 days

42ndpercentile

Moderate risk: more likely to be exploited than 42% of all known CVEs.

References

Third-Party Advisory2

Related Vulnerabilities

Other CWE-798 (Hard-coded Credentials) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2022-26138	Critical	9.8	98%	KEV	-
CVE-2024-3272	Critical	9.8	98%	KEV	-
CVE-2025-30406	Critical	9.0	94%	KEV	Fix
CVE-2024-28987	Critical	9.1	93%	KEV	Fix
CVE-2019-15976	Critical	9.8	93%	-	Fix
CVE-2024-20439	Critical	9.8	92%	KEV	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 2025-06-20.