PT-2026-21549 · Tenda · Tenda Ac8

942384053 · Published 2026-02-23 · Updated 2026-03-01 · CVE-2026-3044

Positive Technologies (AI Summary)

CVSS v2.0

9.0

High

Base vector

AV:N/AC:L/Au:S/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions Tenda AC8 version 16.03.34.06

Description A stack-based buffer overflow exists in the webCgiGetUploadFile function of the Httpd service, specifically within the /cgi-bin/UploadCfg API endpoint. The issue is due to improper handling of the boundary argument, allowing for remote exploitation. The exploit for this issue has been publicly disclosed.

Recommendations Update to a newer version that contains a fix for this vulnerability. As a temporary workaround, consider disabling the webCgiGetUploadFile function until a patch is available.

Exploit

Fix

DoS

Buffer Overflow

Stack Overflow

Weakness Enumeration

CWE-119

CWE-121

Related Identifiers

CVE-2026-3044

Affected Products

Tenda Ac8

References · 15

• 🔥 https://github.com/master-abc/cve/issues/43 · Exploit
• https://osv.dev/vulnerability/CVE-2026-3044 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-3044 · Security Note
• https://twitter.com/CVEarity/status/2026170526486708337 · Twitter Post
• https://twitter.com/cracbot/status/2028062742108934270 · Twitter Post
• https://tenda.com.cn · Note
• https://twitter.com/vuldb/status/2025980530597261708 · Twitter Post
• https://twitter.com/cracbot/status/2027338129305460950 · Twitter Post
• https://twitter.com/CveFindCom/status/2026079949111607670 · Twitter Post
• https://vuldb.com/?submit.757240 · Note
• https://vuldb.com/?id.347400 · Note
• https://twitter.com/CveTodo/status/2026091838319264181 · Twitter Post
• https://twitter.com/cracbot/status/2027700428486619530 · Twitter Post
• https://vuldb.com/?ctiid.347400 · Note
• https://twitter.com/CVEnew/status/2026184670485115165 · Twitter Post