CVE-2025-25505: tenda ac6_firmware Classic Buffer Overflow

Analyzed

Published 21-02-2025Last modified 21-02-2025

Vulnerability summary

CVE-2025-25505 is a medium (CVSS 6.5) Classic Buffer Overflow vulnerability in tenda ac6_firmware. EPSS estimates a 0.30% chance of exploitation in the next 30 days, higher than 21.8% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk

36/100

0100

Medium · default modelHow is this calculated?

CVSS score

6.5/10

010

Medium · v3.1 (CVE.org)

EPSS score

0.30%

0%100%

Low · 0.00 pp in 30 days

KEVNot listedNot listed by any tracked catalog.

RansomwareNot flaggedNo ransomware use recorded.

Public exploits1github

Timeline

21-02-2025
PublishedVulnerability first disclosed.
21-02-2025
Last modifiedVulnerability information updated.

Description

Tenda AC6 15.03.05.16_multi is vulnerable to Buffer Overflow in the sub_452A4 function.

CVSS metrics

2 scores · 2 sources · 1 version

v3.16.5

EPSS trend

Probability

0.30%

Chance of exploitation in the next 30 days

Percentile

22%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.30% on 22-09-2026

22-09-202622-10-2026

Known exploited

Compare KEV catalogs

CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

1 found

githubUnverified
Iotvuln
Maturity: poc

Weaknesses

CWE · root cause

CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer.

Affected systems

Tenda1 product

ac6_firmware15.03.05.16_multi

1 vendor · 1 product

References

1 links

github.com/faqiadegege/IoTVuln/blob/main/tendaAC6_getRootStatus_callback_overflow/detail.mdExploitThird Party Advisory