How severe is CVE-2026-2657?

CVE-2026-2657 has a CVSS 3.x base score of 3.3, rated low severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.

Is CVE-2026-2657 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.

What products are affected by CVE-2026-2657?

CVE-2026-2657 affects Wren. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-2657?

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

Does CVE-2026-2657 have an EU (EUVD) identifier?

Yes. CVE-2026-2657 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-7645.

When was CVE-2026-2657 published?

CVE-2026-2657 was published on 2026-02-18 and last updated on 2026-06-17.

CVE-2026-2657

CVE-2026-2657 is a low-severity vulnerability in Wren with a CVSS 3.x base score of 3.3. 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: Low (CVSS 3.x base score 3.3)
CVSS v2: 1.7
CVSS v4: 1.9
EPSS exploit prediction: 0% (16th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-7645
Weakness: CWE-119
Affected product: Wren
Published: 2026-02-18
Last modified: 2026-06-17

Description

A vulnerability has been found in wren-lang wren up to 0.4.0. This impacts the function printError of the file src/vm/wren_compiler.c of the component Error Message Handler. Such manipulation leads to stack-based buffer overflow. An attack has to be approached locally. The exploit has been disclosed to the public and may be used. The project was informed of the problem early through an issue report but has not responded yet.

Frequently asked questions

What is CVE-2026-2657?: A vulnerability has been found in wren-lang wren up to 0.4.0. This impacts the function printError of the file src/vm/wren_compiler.c of the component Error Message Handler. Such manipulation leads to stack-based buffer overflow. An attack has to be approached locally. The exploit has been disclosed to the public and may be used. The project was informed of the problem early through an issue report but has not responded yet.
How severe is CVE-2026-2657?: CVE-2026-2657 has a CVSS 3.x base score of 3.3, rated low severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.
Is CVE-2026-2657 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.
What products are affected by CVE-2026-2657?: CVE-2026-2657 affects Wren. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-2657?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-2657 have an EU (EUVD) identifier?: Yes. CVE-2026-2657 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-7645.
When was CVE-2026-2657 published?: CVE-2026-2657 was published on 2026-02-18 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:wren:wren:*:*:*:*:*:*:*:*

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