TI-2026-04860 Aliases CVE-2026-5549 GHSA-7v8w-cr25-ggqq

Tenda AC10 RSA 2048-bit Private Key privkeySrv.pem hard-coded key

HIGH 70CWE-320Published 2026-04-05 · Updated 2026-04-06

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Attack requirements: None
Impact type: Security bypass
Confidentiality · integrity · availability: Low · None · None
Fix status: No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-321.

Summary

A vulnerability was determined in Tenda AC10 16.03.10.10_multi_TDE01. Affected by this issue is some unknown functionality of the file /webroot_ro/pem/privkeySrv.pem of the component RSA 2048-bit Private Key Handler. Executing a manipulation can lead to use of hard-coded cryptographic key . The attack can be launched remotely. The exploit has been publicly disclosed and may be utilized.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.0041 35th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by the CNA

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: Yes
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Tenda	AC10	16.03.10.10_multi_TDE01	—	No fix listed	CNA

AC10 VendorTenda Affected 16.03.10.10_multi_TDE01 Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPE	Versions	Role	Vendor
cpe:2.3:o:tenda:ac10_firmware:16.03.10.10_multi_tde01:::::::*	16.03.10.10_multi_tde01	Vulnerable	Tenda
cpe:2.3:h:tenda:ac10:4.0:::::::*	4.0	Running on	Tenda

cpe:2.3:o:tenda:ac10_firmware:16.03.10.10_multi_tde01:*:*:*:*:*:*:* Versions 16.03.10.10_multi_tde01 Vulnerable ·Tenda
cpe:2.3:h:tenda:ac10:4.0:*:*:*:*:*:*:* Versions 4.0 Running on ·Tenda

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2026-5549
2026-10-03 Alias added: GHSA-7v8w-cr25-ggqq
2026-10-25 EPSS moved to the below the 50th percentile

References

Exploit 1

https://github.com/somanyerrors/tenda-ac10v4-vulnerabilities/blob/main/findings/CRITICAL-05-exposed-rsa-private-key.md

Other 1

https://www.tenda.com.cn/

TI-2018-10434 An issue was discovered on Tenda AC7 devices with firmware through V15.03.06.44_CN(AC7)… KEVCVSS 3.1CRITICAL 9.8
TI-2025-41117 A Buffer overflow vulnerability in function fromAdvSetMacMtuWan of bin httpd in Tenda… CVSS 3.1CRITICAL 9.8
TI-2025-28844 Tenda AC10 V1.0re_V15.03.06.46 is vulnerable to Buffer Overflow in the… CVSS 3.1CRITICAL 9.8
TI-2025-19007 Tenda AC10 V4.0si_V16.03.10.20 is vulnerable to Buffer Overflow in AdvSetMacMtuWan via mac2. CVSS 3.1CRITICAL 9.8
TI-2023-24356 Tenda AC10 version US_AC10V4.0si_V16.03.10.13_cn was discovered to contain a stack… CVSS 3.1CRITICAL 9.8
TI-2023-22562 Buffer Overflow vulnerability in Tenda AC10V4 v.US_AC10V4.0si_V16.03.10.13_cn_TDC01… CVSS 3.1CRITICAL 9.8

See all 91 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences