What is CVE-2025-60690?

A stack-based buffer overflow exists in the get_merge_ipaddr function of the httpd binary on Linksys E1200 v2 routers (Firmware E1200_v2.0.11.001_us.tar.gz). The function concatenates up to four user-supplied CGI parameters matching _0~3 into a fixed-size buffer (a2) without bounds checking. Remote attackers can exploit this vulnerability via specially crafted HTTP requests to execute arbitrary code or cause denial of service without authentication.

How severe is CVE-2025-60690?

CVE-2025-60690 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2025-60690 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (89th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-60690?

CVE-2025-60690 affects Linksys E1200 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-60690?

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-2025-60690 have an EU (EUVD) identifier?

Yes. CVE-2025-60690 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-175339.

When was CVE-2025-60690 published?

CVE-2025-60690 was published on 2025-11-13 and last updated on 2026-07-05.

CVE-2025-60690

CVE-2025-60690 is a high-severity vulnerability in Linksys E1200 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-121.

Key facts

Severity: High (CVSS 3.x base score 8.8)
EPSS exploit prediction: 4% (89th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-175339
Weakness: CWE-121
Affected product: Linksys E1200 Firmware
Published: 2025-11-13
Last modified: 2026-07-05

Description

A stack-based buffer overflow exists in the get_merge_ipaddr function of the httpd binary on Linksys E1200 v2 routers (Firmware E1200_v2.0.11.001_us.tar.gz). The function concatenates up to four user-supplied CGI parameters matching <parameter>_0~3 into a fixed-size buffer (a2) without bounds checking. Remote attackers can exploit this vulnerability via specially crafted HTTP requests to execute arbitrary code or cause denial of service without authentication.

Frequently asked questions

What is CVE-2025-60690?: A stack-based buffer overflow exists in the get_merge_ipaddr function of the httpd binary on Linksys E1200 v2 routers (Firmware E1200_v2.0.11.001_us.tar.gz). The function concatenates up to four user-supplied CGI parameters matching <parameter>_0~3 into a fixed-size buffer (a2) without bounds checking. Remote attackers can exploit this vulnerability via specially crafted HTTP requests to execute arbitrary code or cause denial of service without authentication.
How severe is CVE-2025-60690?: CVE-2025-60690 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2025-60690 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (89th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-60690?: CVE-2025-60690 affects Linksys E1200 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-60690?: 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-2025-60690 have an EU (EUVD) identifier?: Yes. CVE-2025-60690 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-175339.
When was CVE-2025-60690 published?: CVE-2025-60690 was published on 2025-11-13 and last updated on 2026-07-05.

References

EU advisories (EUVD)

http://linksys.com

Affected products (1)

cpe:2.3:o:linksys:e1200_firmware:2.0.11.001:*:*:*:*:*:*:*

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