CVE-2026-86153: Tenda CP3 Redirect.cpp SetRedirectEnable privileges management
Deferred
Published 06-09-2026Last modified 08-09-2026
Vulnerability summary
CVE-2026-86153 is a critical (CVSS 9.4) Incorrect Privilege Assignment vulnerability in tenda cp3_firmware. EPSS estimates a 0.71% chance of exploitation in the next 30 days, higher than 53.2% of scored vulnerabilities.
CVSS score
9.4/10
010
Critical · v4.0 (CVE.org)EPSS score
0.71%
0%100%
Low · +0.33 pp in 30 daysKEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded
Timeline
- 06-09-2026PublishedVulnerability first disclosed.
- 08-09-2026Last modifiedVulnerability information updated.
Description
A vulnerability has been found in Tenda CP3 27.5.57.101. This affects the function CRedirServer::SetRedirectEnable of the file Functions/Redirect.cpp. The manipulation leads to improper privilege management. Remote exploitation of the attack is possible.
CVSS metrics
7 scores · 2 sources · 4 versionsCritical 9.4Preferred score · CVE.org (CNA)
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:XSourcesAll 2 agree
- NVDNIST9.4CriticalCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/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
Critical 9.1Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H/E:X/RL:X/RC:RSourcesAll 2 agree
- NVDNIST9.1CriticalCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Critical 9.1Preferred score · CVE.org (CNA)
CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H/E:X/RL:X/RC:RSourcesSingle source
High 8.3Preferred score · CVE.org (CNA)
AV:N/AC:L/Au:M/C:C/I:C/A:C/E:ND/RL:ND/RC:URSourcesAll 2 agree
- NVDNIST8.3HighAV:N/AC:L/Au:M/C:C/I:C/A:C
EPSS trend
Probability
0.71%
Chance of exploitation in the next 30 days
Percentile
53%
Versus all other CVEs
30-day change
Increase +0.33 pp
From 0.39% on 22-09-2026
22-09-202622-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-266Incorrect Privilege AssignmentA product incorrectly assigns a privilege to a particular actor, creating an unintended sphere of control for that actor.
- CWE-269Improper Privilege ManagementThe product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor.
Affected systems
Tenda1 product
- cp3_firmware27.5.57.101
1 vendor · 1 product
References
5 links- vuldb.com/cve/CVE-2026-86153Third Party Advisory
- vuldb.com/submit/895354Third Party Advisory
- www.tenda.com.cnProduct