Is CVE-2026-40386 in the CISA KEV catalog?

No. CVE-2026-40386 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-40386?

CVE-2026-40386 has a CVSS v3 base score of 4.0 (Moderate).

What is the EPSS score for CVE-2026-40386?

CVE-2026-40386 has an EPSS score of 0.14% (4th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2026-40386?

Upgrade libexif on debian 11 to 0.6.22-3+deb11u1 or later. Fixes are available for 11 affected products.

CVE & CISA-KEV Catalog

CVE-2026-40386

MEDIUM

4.0

CVSS v3

NVD

Description

In libexif through 0.6.25, an integer underflow in size checking for Fuji and Olympus MakerNote decoding could be used by attackers to crash or leak information out of libexif-using programs.

CWE-191

How to fix

Remediation Available

libexifDebian

Fixed in:0.6.22-3+deb11u1CVE-2026-40386

Fixed in:0.6.24-1+deb12u1CVE-2026-40386

Fixed in:0.6.25-1+deb13u1CVE-2026-40386

Fixed in:0.6.26-1CVE-2026-40386

libexifRocky

Fixed in:0:0.6.24-9.el10_2.1RHSA-2026:22529

Fixed in:0:0.6.24-9.el10_0.1RHSA-2026:26274

Fixed in:0:0.6.22-3.el7_9RHSA-2026:26567

Fixed in:0:0.6.22-3.el7_9.ppcRHSA-2026:26567

Fixed in:0:0.6.22-3.el7_9.ppc64RHSA-2026:26567

Fixed in:0:0.6.22-3.el7_9.s390RHSA-2026:26567

Fixed in:0:0.6.22-3.el7_9RHSA-2026:26567

Fixed in:0:0.6.22-5.el8_8.1RHSA-2026:26190

Fixed in:0:0.6.22-6.el8_10RHSA-2026:20929

Fixed in:0:0.6.22-5.el8_6.1RHSA-2026:26191

Fixed in:0:0.6.22-5.el8_4.1RHSA-2026:26292

Fixed in:0:0.6.22-6.el9_6.1RHSA-2026:26224

Fixed in:0:0.6.22-6.el9_4.1RHSA-2026:26192

Fixed in:0:0.6.22-6.el9_8.1RHSA-2026:22553

Fixed in:0:0.6.22-6.el9_4.1RHSA-2026:26192

Fixed in:0:0.6.22-6.el9_2.1RHSA-2026:26276

Fixed in:0:0.6.22-6.el9_8.1RHSA-2026:22553

Fixed in:0:0.6.22-6.el9_2.1RHSA-2026:26276

Fixed in:0:0.6.22-6.el9_8.1RHSA-2026:22553

Fixed in:0:0.6.22-6.el9_2.1RHSA-2026:26276

Fixed in:0:0.6.22-6.el9_6.1RHSA-2026:26224

Fixed in:0:0.6.22-6.el9_2.1RHSA-2026:26276

Fixed in:0:0.6.22-6.el9_6.1RHSA-2026:26224

Fixed in:0:0.6.22-6.el9_8.1RHSA-2026:22553

Fixed in:0:0.6.22-6.el9_6.1RHSA-2026:26224

libexifRed Hat / RHEL

Fixed in:0:0.6.24-9.el10_0.1RHSA-2026:26274

Fixed in:0:0.6.24-9.el10_2.1RHSA-2026:22529

Fixed in:0:0.6.24-9.el10_0.1RHSA-2026:26274

Fixed in:0:0.6.24-9.el10_2.1RHSA-2026:22529

Fixed in:0:0.6.22-3.el7_9.s390RHSA-2026:26567

Fixed in:0:0.6.22-3.el7_9.ppcRHSA-2026:26567

Fixed in:0:0.6.22-3.el7_9RHSA-2026:26567

Fixed in:0:0.6.22-3.el7_9.ppc64RHSA-2026:26567

Fixed in:0:0.6.22-3.el7_9RHSA-2026:26567

Fixed in:0:0.6.22-5.el8_4.1RHSA-2026:26292

Fixed in:0:0.6.22-5.el8_8.1RHSA-2026:26190

Fixed in:0:0.6.22-6.el8_10RHSA-2026:20929

Fixed in:0:0.6.22-5.el8_6.1RHSA-2026:26191

Fixed in:0:0.6.22-5.el8_4.1RHSA-2026:26292

Fixed in:0:0.6.22-6.el9_4.1RHSA-2026:26192

Fixed in:0:0.6.22-6.el9_8.1RHSA-2026:22553

Fixed in:0:0.6.22-6.el9_4.1RHSA-2026:26192

Fixed in:0:0.6.22-6.el9_8.1RHSA-2026:22553

Fixed in:0:0.6.22-6.el9_2.1RHSA-2026:26276

Fixed in:0:0.6.22-6.el9_8.1RHSA-2026:22553

Fixed in:0:0.6.22-6.el9_2.1RHSA-2026:26276

Fixed in:0:0.6.22-6.el9_8.1RHSA-2026:22553

Fixed in:0:0.6.22-6.el9_2.1RHSA-2026:26276

Fixed in:0:0.6.22-6.el9_6.1RHSA-2026:26224

Fixed in:0:0.6.22-6.el9_2.1RHSA-2026:26276

Fixed in:0:0.6.22-6.el9_6.1RHSA-2026:26224

Fixed in:0:0.6.22-6.el9_2.1RHSA-2026:26276

libexif-debuginfoRed Hat / RHEL

Fixed in:0:0.6.24-9.el10_0.1RHSA-2026:26274

Fixed in:0:0.6.24-9.el10_2.1RHSA-2026:22529

Fixed in:0:0.6.24-9.el10_0.1RHSA-2026:26274

Fixed in:0:0.6.22-3.el7_9RHSA-2026:26567

Fixed in:0:0.6.22-3.el7_9.s390RHSA-2026:26567

Fixed in:0:0.6.22-3.el7_9.ppcRHSA-2026:26567

Fixed in:0:0.6.22-3.el7_9RHSA-2026:26567

Fixed in:0:0.6.22-3.el7_9.ppc64RHSA-2026:26567

Fixed in:0:0.6.22-3.el7_9RHSA-2026:26567

Fixed in:0:0.6.22-5.el8_4.1RHSA-2026:26292

Fixed in:0:0.6.22-6.el8_10RHSA-2026:20929

Fixed in:0:0.6.22-5.el8_8.1RHSA-2026:26190

Fixed in:0:0.6.22-5.el8_4.1RHSA-2026:26292

Fixed in:0:0.6.22-5.el8_8.1RHSA-2026:26190

Fixed in:0:0.6.22-5.el8_6.1RHSA-2026:26191

Fixed in:0:0.6.22-6.el8_10RHSA-2026:20929

Fixed in:0:0.6.22-5.el8_8.1RHSA-2026:26190

Fixed in:0:0.6.22-5.el8_6.1RHSA-2026:26191

Fixed in:0:0.6.22-6.el9_6.1RHSA-2026:26224

Fixed in:0:0.6.22-6.el9_2.1RHSA-2026:26276

Fixed in:0:0.6.22-6.el9_4.1RHSA-2026:26192

Fixed in:0:0.6.22-6.el9_8.1RHSA-2026:22553

Fixed in:0:0.6.22-6.el9_2.1RHSA-2026:26276

Fixed in:0:0.6.22-6.el9_8.1RHSA-2026:22553

Fixed in:0:0.6.22-6.el9_2.1RHSA-2026:26276

Fixed in:0:0.6.22-6.el9_4.1RHSA-2026:26192

Fixed in:0:0.6.22-6.el9_6.1RHSA-2026:26224

Fixed in:0:0.6.22-6.el9_2.1RHSA-2026:26276

Fixed in:0:0.6.22-6.el9_6.1RHSA-2026:26224

Fixed in:0:0.6.22-6.el9_4.1RHSA-2026:26192

libexif-debuginfoRocky

Fixed in:0:0.6.24-9.el10_2.1RHSA-2026:22529

Fixed in:0:0.6.24-9.el10_0.1RHSA-2026:26274

Fixed in:0:0.6.22-3.el7_9RHSA-2026:26567

Fixed in:0:0.6.22-3.el7_9.ppc64RHSA-2026:26567

Fixed in:0:0.6.22-3.el7_9RHSA-2026:26567

Fixed in:0:0.6.22-3.el7_9.ppcRHSA-2026:26567

Fixed in:0:0.6.22-3.el7_9.s390RHSA-2026:26567

Fixed in:0:0.6.22-3.el7_9RHSA-2026:26567

Fixed in:0:0.6.22-5.el8_4.1RHSA-2026:26292

Fixed in:0:0.6.22-6.el8_10RHSA-2026:20929

Fixed in:0:0.6.22-5.el8_4.1RHSA-2026:26292

Fixed in:0:0.6.22-5.el8_8.1RHSA-2026:26190

Fixed in:0:0.6.22-6.el8_10RHSA-2026:20929

Fixed in:0:0.6.22-5.el8_8.1RHSA-2026:26190

Fixed in:0:0.6.22-5.el8_6.1RHSA-2026:26191

Fixed in:0:0.6.22-6.el8_10RHSA-2026:20929

Fixed in:0:0.6.22-5.el8_6.1RHSA-2026:26191

Fixed in:0:0.6.22-6.el8_10RHSA-2026:20929

Fixed in:0:0.6.22-6.el9_6.1RHSA-2026:26224

Fixed in:0:0.6.22-6.el9_2.1RHSA-2026:26276

Fixed in:0:0.6.22-6.el9_6.1RHSA-2026:26224

Fixed in:0:0.6.22-6.el9_8.1RHSA-2026:22553

Fixed in:0:0.6.22-6.el9_6.1RHSA-2026:26224

Fixed in:0:0.6.22-6.el9_2.1RHSA-2026:26276

Fixed in:0:0.6.22-6.el9_4.1RHSA-2026:26192

Fixed in:0:0.6.22-6.el9_8.1RHSA-2026:22553

Fixed in:0:0.6.22-6.el9_4.1RHSA-2026:26192

Fixed in:0:0.6.22-6.el9_2.1RHSA-2026:26276

Fixed in:0:0.6.22-6.el9_4.1RHSA-2026:26192

Fixed in:0:0.6.22-6.el9_2.1RHSA-2026:26276

Fixed in:0:0.6.22-6.el9_8.1RHSA-2026:22553

Fixed in:0:0.6.22-6.el9_2.1RHSA-2026:26276

Fixed in:0:0.6.22-6.el9_8.1RHSA-2026:22553

libexif-debugsourceRed Hat / RHEL

Fixed in:0:0.6.24-9.el10_2.1RHSA-2026:22529

Fixed in:0:0.6.24-9.el10_0.1RHSA-2026:26274

Fixed in:0:0.6.24-9.el10_2.1RHSA-2026:22529

Fixed in:0:0.6.24-9.el10_0.1RHSA-2026:26274

Fixed in:0:0.6.24-9.el10_2.1RHSA-2026:22529

Fixed in:0:0.6.22-5.el8_6.1RHSA-2026:26191

Fixed in:0:0.6.22-6.el8_10RHSA-2026:20929

Fixed in:0:0.6.22-5.el8_6.1RHSA-2026:26191

Fixed in:0:0.6.22-5.el8_8.1RHSA-2026:26190

Fixed in:0:0.6.22-5.el8_4.1RHSA-2026:26292

Fixed in:0:0.6.22-6.el8_10RHSA-2026:20929

Fixed in:0:0.6.22-5.el8_8.1RHSA-2026:26190

Fixed in:0:0.6.22-6.el8_10RHSA-2026:20929

Fixed in:0:0.6.22-5.el8_4.1RHSA-2026:26292

Fixed in:0:0.6.22-6.el8_10RHSA-2026:20929

Fixed in:0:0.6.22-5.el8_8.1RHSA-2026:26190

Fixed in:0:0.6.22-6.el9_8.1RHSA-2026:22553

Fixed in:0:0.6.22-6.el9_2.1RHSA-2026:26276

Fixed in:0:0.6.22-6.el9_8.1RHSA-2026:22553

Fixed in:0:0.6.22-6.el9_2.1RHSA-2026:26276

Fixed in:0:0.6.22-6.el9_8.1RHSA-2026:22553

Fixed in:0:0.6.22-6.el9_2.1RHSA-2026:26276

Fixed in:0:0.6.22-6.el9_6.1RHSA-2026:26224

Fixed in:0:0.6.22-6.el9_2.1RHSA-2026:26276

Fixed in:0:0.6.22-6.el9_6.1RHSA-2026:26224

Fixed in:0:0.6.22-6.el9_4.1RHSA-2026:26192

libexif-debugsourceRocky

Fixed in:0:0.6.24-9.el10_2.1RHSA-2026:22529

Fixed in:0:0.6.24-9.el10_0.1RHSA-2026:26274

Fixed in:0:0.6.24-9.el10_2.1RHSA-2026:22529

Fixed in:0:0.6.24-9.el10_0.1RHSA-2026:26274

Fixed in:0:0.6.24-9.el10_2.1RHSA-2026:22529

Fixed in:0:0.6.24-9.el10_0.1RHSA-2026:26274

Fixed in:0:0.6.22-6.el8_10RHSA-2026:20929

Fixed in:0:0.6.22-5.el8_4.1RHSA-2026:26292

Fixed in:0:0.6.22-6.el8_10RHSA-2026:20929

Fixed in:0:0.6.22-5.el8_6.1RHSA-2026:26191

Fixed in:0:0.6.22-5.el8_4.1RHSA-2026:26292

Fixed in:0:0.6.22-6.el8_10RHSA-2026:20929

Fixed in:0:0.6.22-5.el8_8.1RHSA-2026:26190

Fixed in:0:0.6.22-5.el8_6.1RHSA-2026:26191

Fixed in:0:0.6.22-5.el8_8.1RHSA-2026:26190

Fixed in:0:0.6.22-6.el9_8.1RHSA-2026:22553

Fixed in:0:0.6.22-6.el9_4.1RHSA-2026:26192

Fixed in:0:0.6.22-6.el9_2.1RHSA-2026:26276

Fixed in:0:0.6.22-6.el9_6.1RHSA-2026:26224

Fixed in:0:0.6.22-6.el9_2.1RHSA-2026:26276

Fixed in:0:0.6.22-6.el9_6.1RHSA-2026:26224

Fixed in:0:0.6.22-6.el9_2.1RHSA-2026:26276

Fixed in:0:0.6.22-6.el9_4.1RHSA-2026:26192

libexif-develRed Hat / RHEL

Fixed in:0:0.6.24-9.el10_0.1RHSA-2026:26274

Fixed in:0:0.6.24-9.el10_2.1RHSA-2026:22529

Fixed in:0:0.6.24-9.el10_0.1RHSA-2026:26274

Fixed in:0:0.6.24-9.el10_2.1RHSA-2026:22529

Fixed in:0:0.6.24-9.el10_0.1RHSA-2026:26274

Fixed in:0:0.6.22-3.el7_9.ppc64RHSA-2026:26567

Fixed in:0:0.6.22-3.el7_9.s390RHSA-2026:26567

Fixed in:0:0.6.22-3.el7_9RHSA-2026:26567

Fixed in:0:0.6.22-3.el7_9.ppcRHSA-2026:26567

Fixed in:0:0.6.22-6.el8_10RHSA-2026:20929

Fixed in:0:0.6.22-6.el9_6.1RHSA-2026:26224

Fixed in:0:0.6.22-6.el9_8.1RHSA-2026:22553

libexif-develRocky

Fixed in:0:0.6.24-9.el10_2.1RHSA-2026:22529

Fixed in:0:0.6.24-9.el10_0.1RHSA-2026:26274

Fixed in:0:0.6.24-9.el10_2.1RHSA-2026:22529

Fixed in:0:0.6.24-9.el10_0.1RHSA-2026:26274

Fixed in:0:0.6.24-9.el10_2.1RHSA-2026:22529

Fixed in:0:0.6.22-3.el7_9.ppcRHSA-2026:26567

Fixed in:0:0.6.22-3.el7_9.ppc64RHSA-2026:26567

Fixed in:0:0.6.22-3.el7_9.s390RHSA-2026:26567

Fixed in:0:0.6.22-3.el7_9RHSA-2026:26567

Fixed in:0:0.6.22-6.el8_10RHSA-2026:20929

Fixed in:0:0.6.22-6.el9_8.1RHSA-2026:22553

Fixed in:0:0.6.22-6.el9_6.1RHSA-2026:26224

Fixed in:0:0.6.22-6.el9_8.1RHSA-2026:22553

libexif-docRed Hat / RHEL

Fixed in:0:0.6.24-9.el10_0.1RHSA-2026:26274

Fixed in:0:0.6.24-9.el10_2.1RHSA-2026:22529

Fixed in:0:0.6.24-9.el10_0.1RHSA-2026:26274

Fixed in:0:0.6.22-3.el7_9RHSA-2026:26567

Fixed in:0:0.6.22-3.el7_9.ppc64RHSA-2026:26567

libexif-docRocky

Fixed in:0:0.6.24-9.el10_0.1RHSA-2026:26274

Fixed in:0:0.6.24-9.el10_2.1RHSA-2026:22529

Fixed in:0:0.6.24-9.el10_0.1RHSA-2026:26274

Fixed in:0:0.6.24-9.el10_2.1RHSA-2026:22529

Fixed in:0:0.6.22-3.el7_9RHSA-2026:26567

Fixed in:0:0.6.22-3.el7_9.ppc64RHSA-2026:26567

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityHigh

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityLow

IntegrityNone

AvailabilityLow

CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:L

Exploit Intelligence

0.14%probability of exploitation in 30 days

4thpercentile

Low risk: more likely to be exploited than 4% of all known CVEs.

References

Patch1

github.com

Related Vulnerabilities

Other CWE-191 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2014-0497	Critical	9.8	100%	KEV	Fix
CVE-2020-36221	High	7.5	84%	-	Fix
CVE-2020-36228	High	7.5	83%	-	Fix
CVE-2023-31102	High	7.8	71%	-	Fix
CVE-2024-38063	Critical	9.8	71%	-	Fix
CVE-2017-14496	High	7.5	66%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-14.