How severe is CVE-2022-25858?

CVE-2022-25858 has a CVSS 3.x base score of 5.3, rated medium 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 low.

Is CVE-2022-25858 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (81st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-25858?

CVE-2022-25858 affects Terser. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-25858?

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

When was CVE-2022-25858 published?

CVE-2022-25858 was published on 2022-07-15 and last updated on 2026-06-17.

CVE-2022-25858

CVE-2022-25858 is a medium-severity vulnerability in Terser with a CVSS 3.x base score of 5.3. 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-1333.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
EPSS exploit prediction: 2% (81st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-1333
Affected product: Terser
Published: 2022-07-15
Last modified: 2026-06-17

Description

The package terser before 4.8.1, from 5.0.0 and before 5.14.2 are vulnerable to Regular Expression Denial of Service (ReDoS) due to insecure usage of regular expressions.

Frequently asked questions

What is CVE-2022-25858?: The package terser before 4.8.1, from 5.0.0 and before 5.14.2 are vulnerable to Regular Expression Denial of Service (ReDoS) due to insecure usage of regular expressions.
How severe is CVE-2022-25858?: CVE-2022-25858 has a CVSS 3.x base score of 5.3, rated medium 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 low.
Is CVE-2022-25858 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (81st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-25858?: CVE-2022-25858 affects Terser. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-25858?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2022-25858 published?: CVE-2022-25858 was published on 2022-07-15 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:terser:terser:*:*:*:*:*:node.js:*:*

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