CVE-2025-9014
CVE-2025-9014 is a high-severity vulnerability in Tp-link Tl-wr841n Firmware with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-476.
Key facts
- Severity: High (CVSS 3.x base score 7.5)
- CVSS v4: 6.3
- EPSS exploit prediction: 0% (34th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-2745
- Weakness: CWE-476
- Affected product: Tp-link Tl-wr841n Firmware
- Published:
- Last modified:
Description
A Null Pointer Dereference vulnerability exists in the referer header check of the web portal of TP-Link TL-WR841N v14, caused by improper input validation. A remote, unauthenticated attacker can exploit this flaw and cause Denial of Service on the web portal service.This issue affects TL-WR841N v14: before 250908.
Frequently asked questions
- What is CVE-2025-9014?
- A Null Pointer Dereference vulnerability exists in the referer header check of the web portal of TP-Link TL-WR841N v14, caused by improper input validation. A remote, unauthenticated attacker can exploit this flaw and cause Denial of Service on the web portal service.This issue affects TL-WR841N v14: before 250908.
- How severe is CVE-2025-9014?
- CVE-2025-9014 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
- Is CVE-2025-9014 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (34th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2025-9014?
- CVE-2025-9014 affects Tp-link Tl-wr841n Firmware. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2025-9014?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- Does CVE-2025-9014 have an EU (EUVD) identifier?
- Yes. CVE-2025-9014 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-2745.
- When was CVE-2025-9014 published?
- CVE-2025-9014 was published on 2026-01-15 and last updated on 2026-06-17.
References
- https://www.tp-link.com/en/support/download/tl-wr841n/#Firmware
- https://www.tp-link.com/jp/support/download/tl-wr841n/#Firmware
- https://www.tp-link.com/us/support/download/tl-wr841n/#Firmware
- https://www.tp-link.com/us/support/faq/4894/
Affected products (1)
- cpe:2.3:o:tp-link:tl-wr841n_firmware:*:*:*:*:*:*:*:*
More vulnerabilities in Tp-link Tl-wr841n Firmware
- CVE-2022-25073 — Critical (CVSS 9.8): TL-WR841Nv14_US_0.9.1_4.18 routers were discovered to contain a stack overflow in the function dm_fillObjByStr(). This…
- CVE-2018-12575 — Critical (CVSS 9.8): On TP-Link TL-WR841N v13 00000001 0.9.1 4.16 v0001.0 Build 171019 Rel.55346n devices, all actions in the web interface…
- CVE-2018-11714 — Critical (CVSS 9.8): An issue was discovered on TP-Link TL-WR840N v5 00000005 0.9.1 3.16 v0001.0 Build 170608 Rel.58696n and TL-WR841N v13…
- CVE-2026-5039 — High (CVSS 8.8): TP-Link TL-WR841N v13 uses DES-CBC encryption in the TDDPv2 debug protocol with a cryptographic key derived from…
- CVE-2023-39471 — High (CVSS 8.8): TP-Link TL-WR841N ated_tp Command Injection Remote Code Execution Vulnerability. This vulnerability allows…
- CVE-2023-36489 — High (CVSS 8.8): Multiple TP-LINK products allow a network-adjacent unauthenticated attacker to execute arbitrary OS commands. Affected…
All CVEs affecting Tp-link Tl-wr841n Firmware →
Other CWE-476 (NULL Pointer Dereference) vulnerabilities
- CVE-2022-36648 — Critical (CVSS 10.0): The hardware emulation in the of_dpa_cmd_add_l2_flood of rocker device model in QEMU, as used in 7.0.0 and earlier,…
- CVE-2020-14500 — Critical (CVSS 10.0): Secomea GateManager all versions prior to 9.2c, An attacker can send a negative value and overwrite arbitrary data.
- CVE-2010-2495 — Critical (CVSS 10.0): The pppol2tp_xmit function in drivers/net/pppol2tp.c in the L2TP implementation in the Linux kernel before 2.6.34 does…
- CVE-2026-46195 — Critical (CVSS 9.8): In the Linux kernel, the following vulnerability has been resolved: smb: client: validate dacloffset before building…
- CVE-2026-31657 — Critical (CVSS 9.8): In the Linux kernel, the following vulnerability has been resolved: batman-adv: hold claim backbone gateways by…
- CVE-2026-31436 — Critical (CVSS 9.8): In the Linux kernel, the following vulnerability has been resolved: dmaengine: idxd: fix possible wrong descriptor…
Browse all CWE-476 (NULL Pointer Dereference) vulnerabilities →