CVE-2025-45143: string-math v1.2.2 was discovered to contain a Regex Denial of Service (ReDoS) which is exploited via a crafte

Q: How do I fix CVE-2025-45143?

string-math: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Q: Is CVE-2025-45143 being exploited?

CVE-2025-45143 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2025-45143 affect?

CVE-2025-45143 affects string-math. Severity is high (CVSS 7.0). string-math v1.2.2 was discovered to contain a Regex Denial of Service (ReDoS) which is exploited via a crafted input.

Q: How urgent is CVE-2025-45143?

Priority 44/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

This week

HIGH 7.0REMOTEDOWNGRADE

CVE-2025-45143 is a high-severity flaw (CVSS 7.0) affecting string-math. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

string-math v1.2.2 was discovered to contain a Regex Denial of Service (ReDoS) which is exploited via a crafted input.

Why this priority

High severity
Public exploit reference
Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	7.0 (High)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	None
User interaction	None
EPSS exploit chance	0.4% (top 63%)
CISA exploited list	No
Weakness	CWE-1333
Published	2025-06-30
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: devrafalko

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-06-30 17:15 UTCPublished CVE record published
2026-06-17 09:25 UTCUpdated Record last modified

devrafalko string-math DOWNGRADE

Affected: 1.2.2

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.2.2

1. Check installed version

npm ls string-math

2. No fixed release: DOWNGRADE to a release before 1.2.2

npm view string-math versions npm install string-math@"<1.2.2"

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-45143?

string-math: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2025-45143 being exploited?

CVE-2025-45143 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-45143 affect?

CVE-2025-45143 affects string-math. Severity is high (CVSS 7.0). string-math v1.2.2 was discovered to contain a Regex Denial of Service (ReDoS) which is exploited via a crafted input.

How urgent is CVE-2025-45143?

Priority 44/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

References

← Back to latest CVEs