How severe is CVE-2018-9145?

CVE-2018-9145 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-2018-9145 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (77th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-9145?

CVE-2018-9145 affects Exiv2. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-9145?

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

When was CVE-2018-9145 published?

CVE-2018-9145 was published on 2018-03-30 and last updated on 2026-06-17.

CVE-2018-9145

CVE-2018-9145 is a medium-severity vulnerability in Exiv2 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-20.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 4.3
EPSS exploit prediction: 2% (77th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Exiv2
Published: 2018-03-30
Last modified: 2026-06-17

Description

In the DataBuf class in include/exiv2/types.hpp in Exiv2 0.26, an issue exists in the constructor with an initial buffer size. A large size value may lead to a SIGABRT during an attempt at memory allocation. NOTE: some third parties have been unable to reproduce the SIGABRT when using the 4-DataBuf-abort-1 PoC file.

Frequently asked questions

What is CVE-2018-9145?: In the DataBuf class in include/exiv2/types.hpp in Exiv2 0.26, an issue exists in the constructor with an initial buffer size. A large size value may lead to a SIGABRT during an attempt at memory allocation. NOTE: some third parties have been unable to reproduce the SIGABRT when using the 4-DataBuf-abort-1 PoC file.
How severe is CVE-2018-9145?: CVE-2018-9145 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-2018-9145 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (77th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-9145?: CVE-2018-9145 affects Exiv2. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-9145?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2018-9145 published?: CVE-2018-9145 was published on 2018-03-30 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:exiv2:exiv2:0.26:*:*:*:*:*:*:*

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