How severe is CVE-2018-6759?

CVE-2018-6759 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-2018-6759 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-2018-6759?

CVE-2018-6759 affects Gnu Binutils. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-6759?

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

When was CVE-2018-6759 published?

CVE-2018-6759 was published on 2018-02-06 and last updated on 2026-06-17.

CVE-2018-6759

CVE-2018-6759 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-20.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
CVSS v2: 4.3
EPSS exploit prediction: 2% (80th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Gnu Binutils
Published: 2018-02-06
Last modified: 2026-06-17

Description

The bfd_get_debug_link_info_1 function in opncls.c in the Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2.30, has an unchecked strnlen operation. Remote attackers could leverage this vulnerability to cause a denial of service (segmentation fault) via a crafted ELF file.

Frequently asked questions

What is CVE-2018-6759?: The bfd_get_debug_link_info_1 function in opncls.c in the Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2.30, has an unchecked strnlen operation. Remote attackers could leverage this vulnerability to cause a denial of service (segmentation fault) via a crafted ELF file.
How severe is CVE-2018-6759?: CVE-2018-6759 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-2018-6759 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-2018-6759?: CVE-2018-6759 affects Gnu Binutils. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-6759?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2018-6759 published?: CVE-2018-6759 was published on 2018-02-06 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:gnu:binutils:2.30:*:*:*:*:*:*:*

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