How severe is CVE-2017-7544?

CVE-2017-7544 has a CVSS 3.x base score of 9.1, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability high.

Is CVE-2017-7544 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-7544?

CVE-2017-7544 affects Libexif Project Libexif. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2017-7544?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2017-7544 published?

CVE-2017-7544 was published on 2017-09-21 and last updated on 2026-06-17.

CVE-2017-7544

CVE-2017-7544 is a critical-severity vulnerability in Libexif Project Libexif with a CVSS 3.x base score of 9.1. 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: Critical (CVSS 3.x base score 9.1)
CVSS v2: 6.4
EPSS exploit prediction: 3% (87th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-125
Affected product: Libexif Project Libexif
Published: 2017-09-21
Last modified: 2026-06-17

Description

libexif through 0.6.21 is vulnerable to out-of-bounds heap read vulnerability in exif_data_save_data_entry function in libexif/exif-data.c caused by improper length computation of the allocated data of an ExifMnote entry which can cause denial-of-service or possibly information disclosure.

Frequently asked questions

What is CVE-2017-7544?: libexif through 0.6.21 is vulnerable to out-of-bounds heap read vulnerability in exif_data_save_data_entry function in libexif/exif-data.c caused by improper length computation of the allocated data of an ExifMnote entry which can cause denial-of-service or possibly information disclosure.
How severe is CVE-2017-7544?: CVE-2017-7544 has a CVSS 3.x base score of 9.1, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability high.
Is CVE-2017-7544 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-7544?: CVE-2017-7544 affects Libexif Project Libexif. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2017-7544?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2017-7544 published?: CVE-2017-7544 was published on 2017-09-21 and last updated on 2026-06-17.

References

Affected products (1)

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

More vulnerabilities in Libexif Project Libexif

CVE-2020-13112 — Critical (CVSS 9.1): An issue was discovered in libexif before 0.6.22. Several buffer over-reads in EXIF MakerNote handling could lead to…
CVE-2020-13113 — High (CVSS 8.2): An issue was discovered in libexif before 0.6.22. Use of uninitialized memory in EXIF Makernote handling could lead to…
CVE-2016-6328 — High (CVSS 8.1): A vulnerability was found in libexif. An integer overflow when parsing the MNOTE entry data of the input file. This can…
CVE-2020-0198 — High (CVSS 7.5): In exif_data_load_data_content of exif-data.c, there is a possible UBSAN abort due to an integer overflow. This could…
CVE-2020-0181 — High (CVSS 7.5): In exif_data_load_data_thumbnail of exif-data.c, there is a possible denial of service due to an integer overflow. This…
CVE-2020-13114 — High (CVSS 7.5): An issue was discovered in libexif before 0.6.22. An unrestricted size in handling Canon EXIF MakerNote data could lead…

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