CVE-2026-48397: Lightroom Classic is affected by a Deserialization of Untrusted Data vulnerability that could result in arbitr

Q: How do I fix CVE-2026-48397?

lightroom: upgrade to 15.5. Exact commands for each OS are on this page.

Q: Is CVE-2026-48397 being exploited?

CVE-2026-48397 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-48397 affect?

CVE-2026-48397 affects lightroom. Severity is high (CVSS 8.6). Lightroom Classic is affected by a Deserialization of Untrusted Data vulnerability that could result in arbitrary code execution in the context of the current user. An attacker could exploit this vulnerability to execute arbitrary code. Exp

This month

HIGH 8.6UPGRADE

CVE-2026-48397 is a high-severity flaw (CVSS 8.6) affecting lightroom. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Lightroom Classic is affected by a Deserialization of Untrusted Data vulnerability that could result in arbitrary code execution in the context of the current user. An attacker could exploit this vulnerability to execute arbitrary code. Exploitation of this issue requires user interaction in that a victim must open a malicious file. Scope is changed.

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	8.6 (High)
Attack vector	Local
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	1.0% (top 38%)
CISA exploited list	No
Weakness	CWE-502
Published	2026-08-11
Last modified	2026-10-23

Publisher (CNA): Adobe Systems Incorporated · Vendor: adobe

Last updated 2026-10-23 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-08-11 18:17 UTCPublished CVE record published
2026-10-23 19:10 UTCUpdated Record last modified

adobe lightroom UPGRADE

Affected: < 15.5

Fixed in: 15.5

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy lightroom || rpm -q lightroom || lightroom --version

2. UPGRADE to 15.5 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade lightroom

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade lightroom

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Exact fixes by distribution

Fedora 46 · diffoscope · FIXED · 335-1.fc46 · FEDORA-2026-e4c4cc0856 · source

sudo dnf upgrade --advisory=FEDORA-2026-e4c4cc0856

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-48397?

lightroom: upgrade to 15.5. Exact commands for each OS are on this page.

Is CVE-2026-48397 being exploited?

CVE-2026-48397 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-48397 affect?

CVE-2026-48397 affects lightroom. Severity is high (CVSS 8.6). Lightroom Classic is affected by a Deserialization of Untrusted Data vulnerability that could result in arbitrary code execution in the context of the current user. An attacker could exploit this vulnerability to execute arbitrary code. Exp

How urgent is CVE-2026-48397?

Priority 46/100. High severity

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References

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