How severe is CVE-2018-20030?

CVE-2018-20030 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-2018-20030 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (89th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-20030?

CVE-2018-20030 affects Libexif Project Libexif. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-20030?

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-2018-20030 published?

CVE-2018-20030 was published on 2019-02-20 and last updated on 2026-06-17.

CVE-2018-20030

CVE-2018-20030 is a high-severity vulnerability in Libexif Project Libexif 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-400.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 7.8
EPSS exploit prediction: 4% (89th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-400
Affected product: Libexif Project Libexif
Published: 2019-02-20
Last modified: 2026-06-17

Description

An error when processing the EXIF_IFD_INTEROPERABILITY and EXIF_IFD_EXIF tags within libexif version 0.6.21 can be exploited to exhaust available CPU resources.

Frequently asked questions

What is CVE-2018-20030?: An error when processing the EXIF_IFD_INTEROPERABILITY and EXIF_IFD_EXIF tags within libexif version 0.6.21 can be exploited to exhaust available CPU resources.
How severe is CVE-2018-20030?: CVE-2018-20030 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-2018-20030 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (89th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-20030?: CVE-2018-20030 affects Libexif Project Libexif. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-20030?: 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-2018-20030 published?: CVE-2018-20030 was published on 2019-02-20 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:libexif_project:libexif:0.6.21:*:*:*:*:*:*:*

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