How severe is CVE-2021-28092?

CVE-2021-28092 has a CVSS 3.x base score of 7.5, rated high 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 high.

Is CVE-2021-28092 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (80th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-28092?

CVE-2021-28092 affects Is-svg Project Is-svg. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-28092?

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.

When was CVE-2021-28092 published?

CVE-2021-28092 was published on 2021-03-12 and last updated on 2026-06-17.

CVE-2021-28092

CVE-2021-28092 is a high-severity vulnerability in Is-svg Project Is-svg with a CVSS 3.x base score of 7.5. 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: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 2% (80th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-1333
Affected product: Is-svg Project Is-svg
Published: 2021-03-12
Last modified: 2026-06-17

Description

The is-svg package 2.1.0 through 4.2.1 for Node.js uses a regular expression that is vulnerable to Regular Expression Denial of Service (ReDoS). If an attacker provides a malicious string, is-svg will get stuck processing the input for a very long time.

Frequently asked questions

What is CVE-2021-28092?: The is-svg package 2.1.0 through 4.2.1 for Node.js uses a regular expression that is vulnerable to Regular Expression Denial of Service (ReDoS). If an attacker provides a malicious string, is-svg will get stuck processing the input for a very long time.
How severe is CVE-2021-28092?: CVE-2021-28092 has a CVSS 3.x base score of 7.5, rated high 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 high.
Is CVE-2021-28092 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (80th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-28092?: CVE-2021-28092 affects Is-svg Project Is-svg. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-28092?: 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.
When was CVE-2021-28092 published?: CVE-2021-28092 was published on 2021-03-12 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:is-svg_project:is-svg:*:*:*:*:*:node.js:*:*

More vulnerabilities in Is-svg Project Is-svg

CVE-2021-29059 — High (CVSS 7.5): A vulnerability was discovered in IS-SVG version 2.1.0 to 4.2.2 and below where a Regular Expression Denial of Service…

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