How severe is CVE-2018-20671?

CVE-2018-20671 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2018-20671 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (78th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-20671?

CVE-2018-20671 affects Gnu Binutils. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-20671?

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

When was CVE-2018-20671 published?

CVE-2018-20671 was published on 2019-01-04 and last updated on 2026-06-17.

CVE-2018-20671

CVE-2018-20671 is a medium-severity vulnerability in Gnu Binutils with a CVSS 3.x base score of 5.5. 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-190.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
CVSS v2: 4.3
EPSS exploit prediction: 2% (78th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-190
Affected product: Gnu Binutils
Published: 2019-01-04
Last modified: 2026-06-17

Description

load_specific_debug_section in objdump.c in GNU Binutils through 2.31.1 contains an integer overflow vulnerability that can trigger a heap-based buffer overflow via a crafted section size.

Frequently asked questions

What is CVE-2018-20671?: load_specific_debug_section in objdump.c in GNU Binutils through 2.31.1 contains an integer overflow vulnerability that can trigger a heap-based buffer overflow via a crafted section size.
How severe is CVE-2018-20671?: CVE-2018-20671 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2018-20671 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (78th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-20671?: CVE-2018-20671 affects Gnu Binutils. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-20671?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2018-20671 published?: CVE-2018-20671 was published on 2019-01-04 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:gnu:binutils:*:*:*:*:*:*:*:*

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