How severe is CVE-2026-3697?

CVE-2026-3697 has a CVSS 3.x base score of 6.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2026-3697 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (16th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-3697?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-3697 have an EU (EUVD) identifier?

Yes. CVE-2026-3697 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-10204.

When was CVE-2026-3697 published?

CVE-2026-3697 was published on 2026-03-08 and last updated on 2026-06-17.

CVE-2026-3697

CVE-2026-3697 is a medium-severity vulnerability with a CVSS 3.x base score of 6.3. 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: Medium (CVSS 3.x base score 6.3)
CVSS v2: 6.5
CVSS v4: 2.1
EPSS exploit prediction: 0% (16th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-10204
Weakness: CWE-119
Published: 2026-03-08
Last modified: 2026-06-17

Description

A vulnerability was determined in Planet ICG-2510 1.0_20250811. The impacted element is the function sub_40C8E4 of the file /usr/sbin/httpd of the component Language Package Configuration Handler. Executing a manipulation of the argument Language can lead to stack-based buffer overflow. The attack can be launched remotely. The vendor was contacted early about this disclosure but did not respond in any way.

Frequently asked questions

What is CVE-2026-3697?: A vulnerability was determined in Planet ICG-2510 1.0_20250811. The impacted element is the function sub_40C8E4 of the file /usr/sbin/httpd of the component Language Package Configuration Handler. Executing a manipulation of the argument Language can lead to stack-based buffer overflow. The attack can be launched remotely. The vendor was contacted early about this disclosure but did not respond in any way.
How severe is CVE-2026-3697?: CVE-2026-3697 has a CVSS 3.x base score of 6.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2026-3697 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (16th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-3697?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-3697 have an EU (EUVD) identifier?: Yes. CVE-2026-3697 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-10204.
When was CVE-2026-3697 published?: CVE-2026-3697 was published on 2026-03-08 and last updated on 2026-06-17.

References

Other CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer) vulnerabilities

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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.

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