CVE-2002-2439: Integer overflow in the new[] operator in gcc before 4.8.0 allows attackers to have unspecified impacts.

Q: How do I fix CVE-2002-2439?

gcc: upgrade to 4.8.0. Exact commands for each OS are on this page.

Q: Is CVE-2002-2439 being exploited?

CVE-2002-2439 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-2002-2439 affect?

CVE-2002-2439 affects gcc. Severity is high (CVSS 7.8). Integer overflow in the new[] operator in gcc before 4.8.0 allows attackers to have unspecified impacts.

Q: How urgent is CVE-2002-2439?

Priority 44/100. High severity; Public exploit reference

This month

HIGH 7.8UPGRADE

CVE-2002-2439 is a high-severity flaw (CVSS 7.8) affecting gcc. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Integer overflow in the new[] operator in gcc before 4.8.0 allows attackers to have unspecified impacts.

Why this priority

High severity
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	7.8 (High)
Attack vector	Local
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.5% (top 54%)
CISA exploited list	No
Weakness	CWE-190
Published	2019-10-23
Last modified	2026-06-16

Publisher (CNA): Red Hat, Inc. · Vendor: gnu

Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2019-10-23 18:15 UTCPublished CVE record published
2026-06-16 22:01 UTCUpdated Record last modified

gnu gcc UPGRADE

Affected: < 4.8.0

Fixed in: 4.8.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy gcc || rpm -q gcc || gcc --version

2. UPGRADE to 4.8.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade gcc

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade gcc

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

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-2002-2439?

gcc: upgrade to 4.8.0. Exact commands for each OS are on this page.

Is CVE-2002-2439 being exploited?

CVE-2002-2439 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-2002-2439 affect?

CVE-2002-2439 affects gcc. Severity is high (CVSS 7.8). Integer overflow in the new[] operator in gcc before 4.8.0 allows attackers to have unspecified impacts.

How urgent is CVE-2002-2439?

Priority 44/100. High severity; Public exploit reference

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References

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