Predictable encryption passphrase used in publicly accessible configuration file

published 2024-01-12 2 y ago modified 2026-06-17 4 mo ago also EUVD-2023-53258

cvss: 7.5; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.5%; EPSS 0.5% chance of exploitation in 30 days, percentile 40%
public exploits: 0; none known

It is possible to download the configuration backup without authorization and decrypt included passwords using hardcoded static key.

Patch / fix

fixed in 1

Hongdian H8951-4G-ESP 2310271149

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: total
Assessed: 2 y ago (2024-01-12)

Exploit prediction

0.47% chance of exploitation in the next 30 days, higher than 40% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CISA ADP	3.1	7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
NVD	3.1	7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CNA	3.1	7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected products

Hongdian H8951-4G-ESP

Classification

Weakness

CWE-321 Use of Hard-coded Cryptographic Key
CWE-798 Use of Hard-coded Credentials

References

cert.pl /en/posts/2024/01/CVE-2023-49253/
third-party-advisory
cert.pl /posts/2024/01/CVE-2023-49253/
third-party-advisory

Sources

CVE List CVE-2023-49256
NVD CVE-2023-49256

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary