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CVE-2025-9089

32
FAUCET Score

CVE-2025-9089 is a critical stack-based buffer overflow vulnerability affecting Tenda AC20 firmware version 16.03.08.12, specifically within the /goform/SetIpMacBind function. This flaw allows for remote exploitation, enabling unauthenticated attackers to achieve high impact on confidentiality, integrity, and availability. With a CVSS score of 9.8 (CRITICAL), the vulnerability is easily exploitable over the network with low attack complexity. Although not yet added to CISA's KEV catalog, a public exploit has been disclosed, and the vulnerability has garnered some community discussion, indicating a potential for active exploitation.

Impacted Technologies

VendorProductVersion(s)CPE
16.03.08.12CPE matchmatch criteria
cpe:2.3:o:tenda:ac20_firmware:16.03.08.12:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 4.0

7.4HIGH

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/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

Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
VS Confidentiality
HIGH
VS Integrity
HIGH
VS Availability
HIGH
SS Confidentiality
NONE
SS Integrity
NONE
SS Availability
NONE
Exploit Maturity
PROOF_OF_CONCEPT
CvssVersion
4.0

Exploit Intelligence

EPSS Score
1.11%
Probability of exploitation in next 30 days
EPSS Percentile
62.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0111 is in the 48th percentile among its peer group of 36,897 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

github.com / ZZ2266/.github.io/blob/main/AC20/fromSetIpMacBind/readme.md
ExploitThird Party Advisory
github.com / ZZ2266/.github.io/blob/main/AC20/fromSetIpMacBind/readme.md
ExploitThird Party Advisory
vuldb.com
Permissions RequiredVDB Entry
vuldb.com
Third Party AdvisoryVDB Entry
vuldb.com
Third Party AdvisoryVDB Entry
tenda.com.cn
Product