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CVE-2022-28560

29
FAUCET Score

CVE-2022-28560 is a critical stack overflow vulnerability affecting the Tenda AC9 15.03.2.21_cn router's httpd service, specifically within the goform/fast_setting_wifi_set function. With a CVSS score of 9.8, this vulnerability allows an unauthenticated attacker to achieve a stable shell on the device by sending a crafted payload over the network. While highly severe and easily exploitable with no user interaction required, there is currently no public exploit code available, nor is there evidence of active exploitation or significant community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
15.03.2.21_cnCPE matchmatch criteria
cpe:2.3:o:tenda:ac9_firmware:15.03.2.21_cn:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.67%
Probability of exploitation in next 30 days
EPSS Percentile
74.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0167 is in the 62nd 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 / iot-firmeware/-Router-vulnerability/tree/main/Tenda%20AC9
ExploitThird Party Advisory