CVE-2025-31355
published 2025-08-20CVE-2025-31355: A firmware update vulnerability exists in the Firmware Signature Validation functionality of Tenda AC6 V5.0 V02.03.01.110. A specially crafted malicious file…
PriorityP352critical9.8CVSS 3.1
AVNACLPRNUINSUCHIHAH
EPSS
0.28%
19.9th percentile
A firmware update vulnerability exists in the Firmware Signature Validation functionality of Tenda AC6 V5.0 V02.03.01.110. A specially crafted malicious file can lead to arbitrary code execution. An attacker can provide a malicious file to trigger this vulnerability.
Affected
2 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| tenda | ac6_firmware | — | — |
| tenda | ac6_v5.0 | — | — |
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Talos
Libbiosig, Tenda, SAIL, PDF XChange, Foxit vulnerabilities
blogs_talos·2025-08-27·CVSS 8.1
[HIGH] Libbiosig, Tenda, SAIL, PDF XChange, Foxit vulnerabilities
Cisco Talos’ Vulnerability Discovery & Research team recently disclosed ten vulnerabilities in BioSig Libbiosig, nine in Tenda AC6 Router, eight in SAIL, two in PDF-XChange Editor, and one in a Foxit PDF Reader.
The vulnerabilities mentioned in this blog post have been patched by their respective vendors, all in adherence to Cisco’s third-party vulnerability disclosure policy.
For Snort coverage that can detect the exploitation of these vulnerabilities, download the latest rule sets from Snort.org, and our latest Vulnerability Advisories are always posted on Talos Intelligence’s website.
## Libbiosig vulnerabilities
Discovered by Mark Bereza and Lilith >_> of Cisco Talos.
BioSig is an open source software library for biomedical signal processing. The aim of the BioSig project is to fo
Talos
Libbiosig, Tenda, SAIL, PDF XChange, Foxit vulnerabilities
blogs_talos·2025-08-27·CVSS 8.1
[HIGH] Libbiosig, Tenda, SAIL, PDF XChange, Foxit vulnerabilities
## Libbiosig, Tenda, SAIL, PDF XChange, Foxit vulnerabilities
Cisco Talos’ Vulnerability Discovery & Research team recently disclosed ten vulnerabilities in BioSig Libbiosig, nine in Tenda AC6 Router, eight in SAIL, two in PDF-XChange Editor, and one in a Foxit PDF Reader.
The vulnerabilities mentioned in this blog post have been patched by their respective vendors, all in adherence to Cisco’s third-party vulnerability disclosure policy .
For Snort coverage that can detect the exploitation of these vulnerabilities, download the latest rule sets from Snort.org , and our latest Vulnerability Advisories are always posted on Talos Intelligence’s website .
## Libbiosig vulnerabilities
Discovered by Mark Bereza and Lilith >_> of Cisco Talos.
BioSig is an open source software library for bi
2025-08-20
Published