CVE-2025-9525
CVE-2025-9525 is a high-severity vulnerability in Linksys E1700 Firmware with a CVSS 3.x base score of 8.8. 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-119.
Key facts
- Severity: High (CVSS 3.x base score 8.8)
- CVSS v2: 9.0
- CVSS v4: 7.4
- EPSS exploit prediction: 1% (66th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2025-25878
- Weakness: CWE-119
- Affected product: Linksys E1700 Firmware
- Published:
- Last modified:
Description
A flaw has been found in Linksys E1700 1.0.0.4.003. Affected by this vulnerability is the function setWan of the file /goform/setWan. This manipulation of the argument DeviceName/lanIp causes stack-based buffer overflow. The attack can be initiated remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Frequently asked questions
- What is CVE-2025-9525?
- A flaw has been found in Linksys E1700 1.0.0.4.003. Affected by this vulnerability is the function setWan of the file /goform/setWan. This manipulation of the argument DeviceName/lanIp causes stack-based buffer overflow. The attack can be initiated remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
- How severe is CVE-2025-9525?
- CVE-2025-9525 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2025-9525 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (66th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2025-9525?
- CVE-2025-9525 affects Linksys E1700 Firmware. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2025-9525?
- 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-2025-9525 have an EU (EUVD) identifier?
- Yes. CVE-2025-9525 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-25878.
- When was CVE-2025-9525 published?
- CVE-2025-9525 was published on 2025-08-27 and last updated on 2026-06-17.
References
- https://github.com/wudipjq/my_vuln/blob/main/Linksys2/vuln_58/58.md
- https://github.com/wudipjq/my_vuln/blob/main/Linksys2/vuln_58/58.md#poc
- https://vuldb.com/?ctiid.321542
- https://vuldb.com/?id.321542
- https://vuldb.com/?submit.634824
- https://www.linksys.com/
Affected products (1)
- cpe:2.3:o:linksys:e1700_firmware:1.0.0.4.003:*:*:*:*:*:*:*
More vulnerabilities in Linksys E1700 Firmware
- CVE-2025-9527 — High (CVSS 8.8): A vulnerability was found in Linksys E1700 1.0.0.4.003. This affects the function QoSSetup of the file…
- CVE-2025-9526 — High (CVSS 8.8): A vulnerability has been found in Linksys E1700 1.0.0.4.003. Affected by this issue is the function setSysAdm of the…
- CVE-2024-22544 — High (CVSS 8.0): An issue was discovered in Linksys Router E1700 version 1.0.04 (build 3), allows authenticated attackers to execute…
- CVE-2024-22543 — Medium (CVSS 6.1): An issue was discovered in Linksys Router E1700 1.0.04 (build 3), allows authenticated attackers to escalate privileges…
- CVE-2025-9528 — Medium (CVSS 4.7): A vulnerability was determined in Linksys E1700 1.0.0.4.003. This vulnerability affects the function systemCommand of…
All CVEs affecting Linksys E1700 Firmware →
Other CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer) vulnerabilities
- CVE-2026-2778 — Critical (CVSS 10.0): Sandbox escape due to incorrect boundary conditions in the DOM: Core & HTML component. This vulnerability was fixed in…
- CVE-2026-2776 — Critical (CVSS 10.0): Sandbox escape due to incorrect boundary conditions in the Telemetry component in External Software. This vulnerability…
- CVE-2025-1866 — Critical (CVSS 10.0): Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in warmcat libwebsockets allows…
- CVE-2022-27625 — Critical (CVSS 10.0): A vulnerability regarding improper restriction of operations within the bounds of a memory buffer is found in the…
- CVE-2022-27624 — Critical (CVSS 10.0): A vulnerability regarding improper restriction of operations within the bounds of a memory buffer is found in the…
- CVE-2020-11896 — Critical (CVSS 10.0): The Treck TCP/IP stack before 6.0.1.66 allows Remote Code Execution, related to IPv4 tunneling.