CVE-2026-5549

Exploitation

Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.

SSVC decision

• ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
• AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.40% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 32.6% of scored records. A rank, not a probability.

NVD base score

5.5 (CVSS v4.0), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

NVD analysis status

Analyzed. NVD last modified this record on 2026-07-24.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2026-04-05 07:45Z5 MO AGO

Last updated

2026-04-06 16:21Z5 MO AGO

Reserved

2026-04-04

Assigning CNA

VulDB

Record state

PUBLISHED

Severity

Medium (CVSS 6.9)

CNA CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P

Weaknesses

• CWE-320
• CWE-321Use of Hard-coded Cryptographic KeyVariant

Data version

5.2

Document digest

0969c2ebae876cd791ade6a67da22b7a8904e95f26f41611645df0f14a3ce718

• vuldb.comVDB-355313 | Tenda AC10 RSA 2048-bit Private Key privkeySrv.pem hard-coded keyhttps://vuldb.com/vuln/355313vdb-entry
• vuldb.comVDB-355313 | CTI Indicators (IOB, IOC, TTP, IOA)https://vuldb.com/vuln/355313/ctisignaturepermissions-required
• vuldb.comSubmit #782298 | Tenda AC10 V4 US_AC10V4.0si_V16.03.10.10_multi_TDE01 Cryptographic Issueshttps://vuldb.com/submit/782298third-party-advisory
• github.comhttps://github.com/somanyerrors/tenda-ac10v4-vulnerabilities/blob/main/findings/CRITICAL-05-exposed-rsa-private-key.mdexploit
• www.tenda.com.cnhttps://www.tenda.com.cn/product