What is CVE-2023-49262?

CVE-2023-49262 is a critical-severity vulnerability in Hongdian H8951-4g-Esp, classified under Integer Overflow or Wraparound. CVSS score: 9.8/10. Published 2024-01-12.

How severe is CVE-2023-49262?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2023-49262 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Auth bypass in Hongdian H8951-4g-Esp

CVE-2023-49262

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

Vulnerability class: Integer Overflow

Published 2024-01-12 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.007 (49.8th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 50th percentile — 49.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000

Affected products

Hongdian H8951-4g-Esp — versions 0
Hongdian H8951-4g-Esp Firmware

Weakness classification (CWE)

Public proof-of-concept exploits

fkie-cad/nvd-json-data-feeds

References

cert.pl/en/posts/2024/01/CVE-2023-49253/ (Third Party Advisory, third-party-advisory)
cert.pl/posts/2024/01/CVE-2023-49253/ (Third Party Advisory, third-party-advisory)

Frequently asked questions

What is CVE-2023-49262?: CVE-2023-49262 is a critical-severity vulnerability in Hongdian H8951-4g-Esp, classified under Integer Overflow or Wraparound. CVSS score: 9.8/10. Published 2024-01-12.
How severe is CVE-2023-49262?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2023-49262 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.