A Stack Based Buffer Overflow vulnerability in Tenda AC9 v.3.0 with firmware version v.15.03.06.42_multi allows a remote attacker to execute
A Stack Based Buffer Overflow vulnerability in Tenda AC9 v.3.0 with firmware version v.15.03.06.42_multi allows a remote attacker to execute arbitrary code via the fromSetSysTime function.
- Published
- Feb 26, 2024
- Updated
- Jun 17, 2026
- EPSS
- 1.0% · 61th percentile
- CWE
- CWE-121
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Report tools
Action score
39
Monitor
Low priority for now.
- CVSS
- 39 / 40 · 9.8 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 1.0%
CISA SSVC decision
- Exploitation
- proof of concept
- Automatable
- no
- Technical impact
- total
Vulnrichment: CISA's decision-tree inputs.
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for the hundreds of thousands of vulnerabilities in the database; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.
We use this product, ask for helpAffected systems
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- tenda ac9 firmware5.03.06.42_multi
Same product
tenda: all recordsOther highest-scoring records for the same primary product.
- CVE-2022-25434Tenda AC9 v15.03.2.21 was discovered to contain a stack overflow via the firewallen parameter in the SetFirewallCfg function.42Plan
- CVE-2022-25414Tenda AC9 V15.03.2.21_cn was discovered to contain a stack overflow via the parameter NPTR.42Plan
- CVE-2025-44877Tenda AC9 V15.03.06.42_multi was found to contain a command injection vulnerability in the formSetSambaConf function via the usbname paramet40Plan
- CVE-2025-44872Tenda AC9 V15.03.06.42_multi was found to contain a command injection vulnerability in the formsetUsbUnload function via the deviceName para40Plan
- CVE-2025-29384In Tenda AC9 v1.0 V15.03.05.14_multi, the wanMTU parameter of /goform/AdvSetMacMtuWan has a stack overflow vulnerability, which can lead to 40Plan
- CVE-2025-22949Tenda ac9 v1.0 firmware v15.03.05.19 is vulnerable to command injection in /goform/SetSambaCfg, which may lead to remote arbitrary code exec40Plan
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
No fix version is recorded for this entry. Check the references for vendor advisories.
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
No dated events beyond publication.
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
- CVE-2025-45427422 days apartIn Tenda AC9 v1.0 with firmware V15.03.05.14_multi, the security parameter of /goform/WifiBasicSet has a stack overflow vulnerability, which39Monitor
- CVE-2025-45428422 days apartIn Tenda ac9 v1.0 with firmware V15.03.05.14_multi, the rebootTime parameter of /goform/SetSysAutoRebbotCfg has a stack overflow vulnerabili39Monitor
- CVE-2025-45429422 days apartIn the Tenda ac9 v1.0 router with firmware V15.03.05.14_multi, there is a stack overflow vulnerability in /goform/WifiWpsStart, which may le39Monitor
- CVE-2024-257464 days apartStack Based Buffer Overflow vulnerability in Tenda AC9 v.3.0 with firmware version v.15.03.06.42_multi allows a remote attacker to execute a35Monitor
- CVE-2024-257484 days apartA Stack Based Buffer Overflow vulnerability in tenda AC9 AC9 v.3.0 with firmware version v.15.03.06.42_multi allows a remote attacker to exe35Monitor
- CVE-2024-257534 days apartStack Based Buffer Overflow vulnerability in Tenda AC9 v.3.0 with firmware version v.15.03.06.42_multi allows a remote attacker to execute a35Monitor
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
Attack conditions
- Anyone who can reach it over the internet can trigger it.
- No account or password is required.
- No user action is required.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- high · data can be read
- Integrity
- high · data or configuration can be modified
- Availability
- high · the service can be disrupted
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- High
- Availability impact
- High
Weakness class (CWE)
CWE-121 · Stack-based Buffer OverflowCVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
nvd-secondary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
MITRE has no CAPEC/ATT&CK mapping for this CWE.
Change log
No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.
References
Vendor advisories and official records. Exploit/PoC links are deliberately left out.