How severe is CVE-2015-9274?

CVE-2015-9274 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2015-9274 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (72nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-9274?

CVE-2015-9274 affects Harfbuzz Project Harfbuzz. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2015-9274?

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

When was CVE-2015-9274 published?

CVE-2015-9274 was published on 2018-11-15 and last updated on 2026-06-17.

CVE-2015-9274

CVE-2015-9274 is a medium-severity vulnerability in Harfbuzz Project Harfbuzz with a CVSS 3.x base score of 6.5. 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-125.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 4.3
EPSS exploit prediction: 2% (72nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-125
Affected product: Harfbuzz Project Harfbuzz
Published: 2018-11-15
Last modified: 2026-06-17

Description

HarfBuzz before 1.0.4 allows remote attackers to cause a denial of service (invalid read of two bytes and application crash) because of GPOS and GSUB table mishandling, related to hb-ot-layout-gpos-table.hh, hb-ot-layout-gsub-table.hh, and hb-ot-layout-gsubgpos-private.hh.

Frequently asked questions

What is CVE-2015-9274?: HarfBuzz before 1.0.4 allows remote attackers to cause a denial of service (invalid read of two bytes and application crash) because of GPOS and GSUB table mishandling, related to hb-ot-layout-gpos-table.hh, hb-ot-layout-gsub-table.hh, and hb-ot-layout-gsubgpos-private.hh.
How severe is CVE-2015-9274?: CVE-2015-9274 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2015-9274 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (72nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-9274?: CVE-2015-9274 affects Harfbuzz Project Harfbuzz. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2015-9274?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2015-9274 published?: CVE-2015-9274 was published on 2018-11-15 and last updated on 2026-06-17.

References

https://github.com/harfbuzz/harfbuzz/commit/c917965b9e6fe2b21ed6c51559673288fa3af4b7

Affected products (1)

cpe:2.3:a:harfbuzz_project:harfbuzz:*:*:*:*:*:*:*:*

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