How severe is CVE-2017-8929?

CVE-2017-8929 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-2017-8929 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-8929?

CVE-2017-8929 affects Virustotal Yara. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2017-8929?

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-2017-8929 published?

CVE-2017-8929 was published on 2017-05-14 and last updated on 2026-06-17.

CVE-2017-8929

CVE-2017-8929 is a high-severity vulnerability in Virustotal Yara 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-416.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 2% (76th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-416
Affected product: Virustotal Yara
Published: 2017-05-14
Last modified: 2026-06-17

Description

The sized_string_cmp function in libyara/sizedstr.c in YARA 3.5.0 allows remote attackers to cause a denial of service (use-after-free and application crash) via a crafted rule.

Frequently asked questions

What is CVE-2017-8929?: The sized_string_cmp function in libyara/sizedstr.c in YARA 3.5.0 allows remote attackers to cause a denial of service (use-after-free and application crash) via a crafted rule.
How severe is CVE-2017-8929?: CVE-2017-8929 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-2017-8929 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-8929?: CVE-2017-8929 affects Virustotal Yara. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2017-8929?: 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-2017-8929 published?: CVE-2017-8929 was published on 2017-05-14 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:virustotal:yara:3.5.0:*:*:*:*:*:*:*

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