CVE-2018-12648

The WEBP::GetLE32 function in XMPFiles/source/FormatSupport/WEBP_Support.hpp in Exempi 2.4.5 has...

7.5 HighFix available

The WEBP::GetLE32 function in XMPFiles/source/FormatSupport/WEBP_Support.hpp in Exempi 2.4.5 has a NULL pointer dereference.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: None
Integrity: None
Availability: High

Exploit likelihood

2.24%Up 1.4 points since Apr 14, 2021

What each source reports

NVD Score used 7.5

The WEBP::GetLE32 function in XMPFiles/source/FormatSupport/WEBP_Support.hpp in Exempi 2.4.5 has a NULL pointer dereference.

Record: CVE-2018-12648
CVSS 3.0: 7.5 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0: 4.3 MediumAV:N/AC:M/Au:N/C:N/I:N/A:P
Weakness: CWE-476
Updated: 2026-11-02

CVE List No score

The WEBP::GetLE32 function in XMPFiles/source/FormatSupport/WEBP_Support.hpp in Exempi 2.4.5 has a NULL pointer dereference.

Record: CVE-2018-12648
Updated: 2026-11-02

EUVDEUVD-2018-4603 No score

The WEBP::GetLE32 function in XMPFiles/source/FormatSupport/WEBP_Support.hpp in Exempi 2.4.5 has a NULL pointer dereference.

Record: EUVD-2018-4603
Updated: 2026-11-03

GitHub AdvisoriesGHSA-r54v-h92m-5v94 7.5

The WEBP::GetLE32 function in XMPFiles/source/FormatSupport/WEBP_Support.hpp in Exempi 2.4.5 has...

The WEBP::GetLE32 function in XMPFiles/source/FormatSupport/WEBP_Support.hpp in Exempi 2.4.5 has a NULL pointer dereference.

Record: GHSA-r54v-h92m-5v94
CVSS 3.0: 7.5 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness: CWE-476
Updated: 2026-11-02

OSVAZL-44871 7.5

CVE-2018-12648 affecting package exempi 2.6.5-1

The WEBP::GetLE32 function in XMPFiles/source/FormatSupport/WEBP_Support.hpp in Exempi 2.4.5 has a NULL pointer dereference.

Record: AZL-44871
CVSS 3.0: 7.5 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated: 2026-11-05

OSV 7.5

The WEBP::GetLE32 function in XMPFiles/source/FormatSupport/WEBP_Support.hpp in Exempi 2.4.5 has a NULL pointer dereference.

Record: CVE-2018-12648
CVSS 3.0: 7.5 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated: 2026-11-02

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OSVDEBIAN-CVE-2018-12648 7.5

The WEBP::GetLE32 function in XMPFiles/source/FormatSupport/WEBP_Support.hpp in Exempi 2.4.5 has a NULL pointer dereference.

Record: DEBIAN-CVE-2018-12648
CVSS 3.0: 7.5 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated: 2026-11-02

OSVUBUNTU-CVE-2018-12648 7.5

The WEBP::GetLE32 function in XMPFiles/source/FormatSupport/WEBP_Support.hpp in Exempi 2.4.5 has a NULL pointer dereference.

Record: UBUNTU-CVE-2018-12648
CVSS 3.0: 7.5 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated: 2026-11-02

OSVMGASA-2018-0416 No score

Updated exempi packages fix security vulnerability

It was found that the WEBP::GetLE32 function in XMPFiles/source/FormatSupport/WEBP_Support.hpp in Exempi 2.4.5 has a NULL pointer dereference (CVE-2018-12648).

Record: MGASA-2018-0416
Updated: 2026-11-02

OSVopenSUSE-SU-2019:1649-1 No score

Security update for exempi

This update for exempi fixes the following issues:

CVE-2018-12648: Fixed a NULL pointer dereference (crash) issue when processing webp files (bsc#1098946).

This update was imported from the SUSE:SLE-15:Update update project.

Record: openSUSE-SU-2019:1649-1
Updated: 2026-11-02

OSVopenSUSE-SU-2019:1657-1 No score

Security update for exempi

This update for exempi fixes the following issues:

CVE-2018-12648: Fixed a NULL pointer dereference (crash) issue when processing webp files (bsc#1098946).

This update was imported from the SUSE:SLE-15:Update update project.

Record: openSUSE-SU-2019:1657-1
Updated: 2026-11-02

OSVopenSUSE-SU-2024:10745-1 No score

exempi-tools-2.5.2-1.3 on GA media

These are all security issues fixed in the exempi-tools-2.5.2-1.3 package on the GA media of openSUSE Tumbleweed.

Record: openSUSE-SU-2024:10745-1
Updated: 2026-11-02

OSVSUSE-SU-2019:1603-1 No score

Security update for exempi

This update for exempi fixes the following issues:

CVE-2018-12648: Fixed a NULL pointer dereference (crash) issue when processing webp files (bsc#1098946).

Record: SUSE-SU-2019:1603-1
Updated: 2026-11-02

OSVUSN-5483-1 No score

exempi vulnerabilities

It was discovered that Exempi incorrectly handled certain media files. If a user or automated system were tricked into opening a specially crafted file, a remote attacker could cause Exempi to stop responding or crash, resulting in a denial of service, or possibly execute arbitrary code.

Record: USN-5483-1
Updated: 2026-11-02

Affected products

exempi project exempi

Affected packages

Affected packages
Package	Affected	Fixed
`exempi` Azure Linux:3	through 2.6.5-1	None known
`exempi` Debian:12	before 2.5.0-2	2.5.0-2
`exempi` Debian:13	before 2.5.0-2	2.5.0-2
`exempi` Debian:14	before 2.5.0-2	2.5.0-2
`exempi` Mageia:6	before 2.4.5-1.1.mga6	2.4.5-1.1.mga6
`exempi` SUSE:Linux Enterprise Module for Desktop Applications 15	before 2.4.5-3.3.2	2.4.5-3.3.2
`exempi` SUSE:Linux Enterprise Module for Desktop Applications 15 SP1	before 2.4.5-3.3.2	2.4.5-3.3.2
`exempi` Ubuntu:18.04:LTS	before 2.4.5-2ubuntu0.1, plus listed versions 2.4.3-1ubuntu12.4.5-2	2.4.5-2ubuntu0.1
`exempi` Ubuntu:20.04:LTS	before 2.5.1-1ubuntu0.1, plus listed versions 2.5.1-12.5.1-1build1	2.5.1-1ubuntu0.1
`exempi` Ubuntu:22.04:LTS	before 2.5.2-1ubuntu0.22.04.1, plus listed versions 2.5.2-1build1	2.5.2-1ubuntu0.22.04.1
`exempi` openSUSE:Leap 15.0	before 2.4.5-lp150.2.3.1	2.4.5-lp150.2.3.1
`exempi` openSUSE:Leap 15.1	before 2.4.5-lp151.3.3.1	2.4.5-lp151.3.3.1
`exempi` openSUSE:Tumbleweed	before 2.5.2-1.3	2.5.2-1.3

History

History
Recorded	Changed	Sources
Nov 5, 2026	facts	OSV
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2018-12648 is a high vulnerability (CVSS 7.5) in Exempi Project Exempi, published June 22, 2018. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.24%, the 82nd percentile. Fixed in exempi 2.5.0-2.

References

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