CVE-2022-34300

In tinyexr 1.0.1, there is a heap-based buffer over-read in tinyexr::DecodePixelData.

8.8 HighFix available

In tinyexr 1.0.1, there is a heap-based buffer over-read in tinyexr::DecodePixelData.

Attack profile

How easy it is to exploit

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

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: High

Exploit likelihood

1.51%Up 0.6 points since Jun 23, 2022

What each source reports

NVD Score used 8.8

In tinyexr 1.0.1, there is a heap-based buffer over-read in tinyexr::DecodePixelData.

Record: CVE-2022-34300
CVSS 3.1: 8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS 2.0: 6.8 MediumAV:N/AC:M/Au:N/C:P/I:P/A:P
Weakness: CWE-125
Updated: 2026-11-02

CVE List No score

In tinyexr 1.0.1, there is a heap-based buffer over-read in tinyexr::DecodePixelData.

Record: CVE-2022-34300
Updated: 2026-11-02

EUVDEUVD-2022-37257 No score

In tinyexr 1.0.1, there is a heap-based buffer over-read in tinyexr::DecodePixelData.

Record: EUVD-2022-37257
Updated: 2026-11-03

GitHub AdvisoriesGHSA-f2g4-3hj9-xg6q 8.8

In tinyexr 1.0.1, there is a heap-based buffer over-read in tinyexr::DecodePixelData.

In tinyexr 1.0.1, there is a heap-based buffer over-read in tinyexr::DecodePixelData.

Record: GHSA-f2g4-3hj9-xg6q
CVSS 3.1: 8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness: CWE-125
Updated: 2026-11-02

OSVDEBIAN-CVE-2022-34300 8.8

In tinyexr 1.0.1, there is a heap-based buffer over-read in tinyexr::DecodePixelData.

Record: DEBIAN-CVE-2022-34300
CVSS 3.1: 8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated: 2026-11-03

OSVUBUNTU-CVE-2022-34300 8.8

In tinyexr 1.0.1, there is a heap-based buffer over-read in tinyexr::DecodePixelData.

Record: UBUNTU-CVE-2022-34300
CVSS 3.1: 8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated: 2026-11-02

OSV No score

In tinyexr 1.0.1, there is a heap-based buffer over-read in tinyexr::DecodePixelData.

Record: CVE-2022-34300
Updated: 2026-11-02

OSVUSN-7913-1 No score

mame vulnerabilities

It was discovered that the stb library, included in MAME, had a heap-based buffer overflow. An attacker could possibly use this issue to crash the program or execute arbitrary code. (CVE-2018-16981)

It was discovered that the tinyexr library, included in MAME, had a heap- based buffer over-read in the function DecodePixelData. An attacker could possibly use this issue to expose sensitive information or crash the program. (CVE-2022-34300)

It was discovered that the expat library, included in MAME, had an integer-overflow in the function doProlog. An attacker could possibly use this issue to crash the program or execute arbitrary code. (CVE-2021-46143)

Record: USN-7913-1
Updated: 2026-11-02

Affected products

tinyexr project tinyexr

Affected packages

Affected packages
Package	Affected	Fixed
`tinyexr` Debian:12	before 1.0.1+dfsg-4	1.0.1+dfsg-4
`tinyexr` Debian:13	before 1.0.1+dfsg-4	1.0.1+dfsg-4
`tinyexr` Debian:14	before 1.0.1+dfsg-4	1.0.1+dfsg-4
`asymptote` Ubuntu:16.04:LTS	All versions, plus listed versions 2.35-22.35-2build12.35-32.35-3build12.35-42.37-1	None known
`love` Ubuntu:16.04:LTS	All versions, plus listed versions 0.9.1-3ubuntu1	None known
`mame` Ubuntu:16.04:LTS	All versions, plus listed versions 0.160-0ubuntu1	None known
`psychtoolbox-3` Ubuntu:16.04:LTS	All versions, plus listed versions 3.0.11.20140816.dfsg1-1ubuntu43.0.12.20150725.dfgs1-2ubuntu13.0.12.20160126.dfsg1-1ubuntu1	None known
`rbdoom3bfg` Ubuntu:16.04:LTS	All versions, plus listed versions 1.0.3+repack1+git20150625-1build11.0.3+repack1+git20150806-11.0.3+repack1+git20151103-11.0.3+repack1+git20151103-1build11.0.3+repack1+git20151124-1	None known
`asymptote` Ubuntu:18.04:LTS	All versions, plus listed versions 2.41-2build12.41-32.41-4	None known
`goxel` Ubuntu:18.04:LTS	All versions, plus listed versions 0.7.1-20.7.2-1	None known

Show 65 moreShow less

Affected packages
Package	Affected	Fixed
`love` Ubuntu:18.04:LTS	All versions, plus listed versions 0.9.1-4ubuntu1	None known
`mame` Ubuntu:Pro:18.04:LTS	before 0.195+dfsg.1-2ubuntu0.1~esm1, plus listed versions 0.188+dfsg.1-0ubuntu20.189+dfsg.1-10.192+dfsg.1-0ubuntu10.195+dfsg.1-2	0.195+dfsg.1-2ubuntu0.1~esm1
`psychtoolbox-3` Ubuntu:18.04:LTS	All versions, plus listed versions 3.0.14.20170103+git6-g605ff5c.dfsg1-1build1	None known
`qtwebengine-opensource-src` Ubuntu:Pro:18.04:LTS	All versions, plus listed versions 5.9.1+dfsg-45.9.1+dfsg-4ubuntu15.9.2+dfsg-2ubuntu15.9.3+dfsg-0ubuntu15.9.4+dfsg-0ubuntu15.9.5+dfsg-0ubuntu25.9.5+dfsg-0ubuntu2+esm1	None known
`rbdoom3bfg` Ubuntu:18.04:LTS	All versions, plus listed versions 1.1.0~preview3+dfsg+git20161019-1	None known
`asymptote` Ubuntu:20.04:LTS	All versions, plus listed versions 2.51-12.59-12.60-12.61-12.62-1	None known
`goxel` Ubuntu:20.04:LTS	All versions, plus listed versions 0.8.1-10.8.1-1build1	None known
`love` Ubuntu:20.04:LTS	All versions, plus listed versions 11.1-211.3-1	None known
`mame` Ubuntu:Pro:20.04:LTS	before 0.220+dfsg.1-1ubuntu0.1~esm1, plus listed versions 0.206+dfsg.1-10.214+dfsg.1-20.215+dfsg.1-10.217+dfsg.1-10.217+dfsg.1-1build10.218+dfsg.1-10.220+dfsg.1-1	0.220+dfsg.1-1ubuntu0.1~esm1
`psychtoolbox-3` Ubuntu:20.04:LTS	All versions, plus listed versions 3.0.15.20190207.dfsg1-13.0.15.20190725.dfsg1-1build13.0.16.20200130.dfsg1-1	None known
`qtwebengine-opensource-src` Ubuntu:Pro:20.04:LTS	All versions, plus listed versions 5.12.4+dfsg-1ubuntu15.12.4+dfsg-1ubuntu35.12.5+dfsg-3ubuntu15.12.5+dfsg-6ubuntu25.12.5+dfsg-7 Show 4 moreShow less 5.12.5+dfsg-7build15.12.8+dfsg-0ubuntu15.12.8+dfsg-0ubuntu1.15.12.8+dfsg-0ubuntu1.1+esm1	None known
`rbdoom3bfg` Ubuntu:20.04:LTS	All versions, plus listed versions 1.2.0+dfsg~git20181013-11.2.0+dfsg~git20191014-11.2.0+dfsg~git20191014-2	None known
`renderdoc` Ubuntu:20.04:LTS	All versions, plus listed versions 1.4+dfsg-11.5+dfsg-11.5+dfsg-21.6+dfsg-11.6+dfsg-1build11.6+dfsg-1build2	None known
`asymptote` Ubuntu:22.04:LTS	All versions, plus listed versions 2.70+ds-22.70+ds-2build12.70+ds-2build22.73+ds-22.74+ds-12.75+ds-12.78+ds-2	None known
`goxel` Ubuntu:22.04:LTS	All versions, plus listed versions 0.10.6-30.10.8-1	None known
`love` Ubuntu:22.04:LTS	All versions, plus listed versions 11.3-1	None known
`psychtoolbox-3` Ubuntu:22.04:LTS	All versions, plus listed versions 3.0.17.9.dfsg1-23.0.17.12.dfsg1-13.0.17.12.dfsg1-1.13.0.18.4.dfsg1-1	None known
`qt6-webengine` Ubuntu:22.04:LTS	All versions, plus listed versions 6.2.2+dfsg-6ubuntu26.2.4+dfsg-1ubuntu16.2.4+dfsg-1ubuntu26.2.4+dfsg-6ubuntu1	None known
`rbdoom3bfg` Ubuntu:22.04:LTS	All versions, plus listed versions 1.2.0+dfsg~git20210105-11.2.0+dfsg~git20210105-1build11.3.0+dfsg-2	None known
`renderdoc` Ubuntu:22.04:LTS	All versions, plus listed versions 1.11+dfsg-51.15+dfsg-11.16+dfsg-11.16+dfsg-1build11.18+dfsg-1	None known
`tinyexr` Ubuntu:22.04:LTS	All versions, plus listed versions 1.0.0+dfsg-11.0.1+dfsg-3	None known
`mame` Ubuntu:Pro:22.04:LTS	before 0.242+dfsg.1-1ubuntu0.1~esm1, plus listed versions 0.235+dfsg.1-1ubuntu10.237+dfsg.1-10.238+dfsg.1-10.239+dfsg.1-10.240+dfsg.1-10.242+dfsg.1-1	0.242+dfsg.1-1ubuntu0.1~esm1
`qtwebengine-opensource-src` Ubuntu:Pro:22.04:LTS	All versions, plus listed versions 5.15.6+dfsg-15.15.6+dfsg-25.15.7+dfsg-25.15.8+dfsg-15.15.8+dfsg-1build1 Show 4 moreShow less 5.15.8+dfsg-1build25.15.8+dfsg-25.15.9+dfsg-15.15.9+dfsg-1ubuntu0.1~esm1	None known
`asymptote` Ubuntu:24.04:LTS	All versions, plus listed versions 2.86+ds-12.86+ds1-12.86+ds1-1build12.87+ds-1build12.87+ds-1build2	None known
`goxel` Ubuntu:24.04:LTS	All versions, plus listed versions 0.11.0-1.10.11.0-1.1build20.11.0-1.1build3	None known
`love` Ubuntu:24.04:LTS	All versions, plus listed versions 11.4-111.5-111.5-1build1	None known
`psychtoolbox-3` Ubuntu:24.04:LTS	All versions, plus listed versions 3.0.19.3.dfsg1-13.0.19.5.dfsg1-13.0.19.5.dfsg1-1build23.0.19.5.dfsg1-1build3	None known
`qt6-webengine` Ubuntu:24.04:LTS	All versions, plus listed versions 6.4.2-final+dfsg-116.4.2-final+dfsg-126.4.2-final+dfsg-12build16.4.2-final+dfsg-12ubuntu16.4.2-final+dfsg-12ubuntu76.4.2-final+dfsg-12ubuntu9	None known
`rbdoom3bfg` Ubuntu:24.04:LTS	All versions, plus listed versions 1.4.0+dfsg-2build11.4.0+dfsg-2build3	None known
`tinyexr` Ubuntu:24.04:LTS	All versions, plus listed versions 1.0.7+dfsg-11.0.8+dfsg-1	None known
`mame` Ubuntu:Pro:24.04:LTS	before 0.264+dfsg.1-1ubuntu0.1~esm1, plus listed versions 0.257+dfsg.1-10.258+dfsg.1-1build10.261+dfsg.1-10.261+dfsg.1-1build20.261+dfsg.1-1build30.264+dfsg.1-1	0.264+dfsg.1-1ubuntu0.1~esm1
`qtwebengine-opensource-src` Ubuntu:Pro:24.04:LTS	All versions, plus listed versions 5.15.15+dfsg-25.15.15+dfsg-2build25.15.15+dfsg-2ubuntu15.15.16+dfsg-15.15.16+dfsg-1ubuntu25.15.16+dfsg-1ubuntu45.15.16+dfsg-35.15.16+dfsg-3ubuntu0.1~esm1	None known
`asymptote` Ubuntu:25.10	All versions, plus listed versions 2.95+ds-13.02+ds-13.03+ds-13.04+ds-13.04+ds-1build13.05+ds-2	None known
`goxel` Ubuntu:25.10	All versions, plus listed versions 0.11.0-1.1build3	None known
`love` Ubuntu:25.10	All versions, plus listed versions 11.5-2	None known
`mame` Ubuntu:25.10	before 0.277+dfsg.1-4ubuntu0.1, plus listed versions 0.275+dfsg.1-30.277+dfsg.1-4	0.277+dfsg.1-4ubuntu0.1
`psychtoolbox-3` Ubuntu:25.10	All versions, plus listed versions 3.0.19.14.dfsg1-13.0.19.14.dfsg1-1build1	None known
`qt6-webengine` Ubuntu:25.10	All versions, plus listed versions 6.8.3+dfsg-0ubuntu16.8.3+dfsg-0ubuntu26.9.2+dfsg-2	None known
`qtwebengine-opensource-src` Ubuntu:25.10	All versions, plus listed versions 5.15.18+dfsg-25.15.18+dfsg-2build15.15.19+dfsg-15.15.19+dfsg2-1	None known
`rbdoom3bfg` Ubuntu:25.10	All versions, plus listed versions 1.4.0+dfsg-5ubuntu11.4.0+dfsg-6ubuntu21.4.0+dfsg-7ubuntu2	None known
`tinyexr` Ubuntu:25.10	All versions, plus listed versions 1.0.10+dfsg-1	None known
`asymptote` Ubuntu:26.10	All versions, plus listed versions 3.05+ds-23.11+ds-1	None known
`godot` Ubuntu:26.10	All versions, plus listed versions 4.6.3+ds-14.6.3+ds-2	None known
`goxel` Ubuntu:26.10	All versions, plus listed versions 0.11.0-1.1build40.15.1-1ubuntu1	None known
`love` Ubuntu:26.10	All versions, plus listed versions 11.5-311.5-4	None known
`mame` Ubuntu:26.10	All versions, plus listed versions 0.285+dfsg1-10.287+dfsg1-10.288+dfsg1-10.289+dfsg1-1	None known
`psychtoolbox-3` Ubuntu:26.10	All versions, plus listed versions 3.0.19.14.dfsg1-1build23.0.22.3+dfsg-13.0.22.3+dfsg-3	None known
`qt6-webengine` Ubuntu:26.10	All versions, plus listed versions 6.10.2+dfsg-16.10.2+dfsg-46.10.2+dfsg-56.11.2+dfsg-3ubuntu16.11.2+dfsg-3ubuntu2	None known
`qtwebengine-opensource-src` Ubuntu:26.10	All versions, plus listed versions 5.15.19+dfsg2-45.15.19+dfsg2-65.15.19+dfsg2-7	None known
`rbdoom3bfg` Ubuntu:26.10	All versions, plus listed versions 1.4.0+dfsg-8ubuntu21.4.0+dfsg-9ubuntu11.4.0+dfsg-9ubuntu2	None known
`tinyexr` Ubuntu:26.10	All versions, plus listed versions 1.0.12+dfsg-11.0.13+dfsg-2	None known
`asymptote` Ubuntu:26.04:LTS	All versions, plus listed versions 3.05+ds-2	None known
`goxel` Ubuntu:26.04:LTS	All versions, plus listed versions 0.11.0-1.1build30.11.0-1.1build4	None known
`love` Ubuntu:26.04:LTS	All versions, plus listed versions 11.5-211.5-2build111.5-3	None known
`mame` Ubuntu:26.04:LTS	All versions, plus listed versions 0.277+dfsg.1-40.281+dfsg1-10.281+dfsg1-1build10.284+dfsg1-10.285+dfsg1-1	None known
`psychtoolbox-3` Ubuntu:26.04:LTS	All versions, plus listed versions 3.0.19.14.dfsg1-1build13.0.19.14.dfsg1-1build2	None known
`qt6-webengine` Ubuntu:26.04:LTS	All versions, plus listed versions 6.9.2+dfsg-26.9.2+dfsg-46.9.2+dfsg-4build16.9.2+dfsg-4build26.10.2+dfsg-1	None known
`rbdoom3bfg` Ubuntu:26.04:LTS	All versions, plus listed versions 1.4.0+dfsg-7ubuntu21.4.0+dfsg-8ubuntu11.4.0+dfsg-8ubuntu2	None known
`tinyexr` Ubuntu:26.04:LTS	All versions, plus listed versions 1.0.10+dfsg-11.0.12+dfsg-1	None known
`qtwebengine-opensource-src` Ubuntu:Pro:26.04:LTS	All versions, plus listed versions 5.15.19+dfsg2-15.15.19+dfsg2-1build15.15.19+dfsg2-25.15.19+dfsg2-35.15.19+dfsg2-45.15.19+dfsg2-4ubuntu0.1~esm1	None known
`mame` Ubuntu:Pro:18.04:LTS From an advisory covering 3 CVEs	before 0.195+dfsg.1-2ubuntu0.1~esm1, plus listed versions 0.188+dfsg.1-0ubuntu20.189+dfsg.1-10.192+dfsg.1-0ubuntu10.195+dfsg.1-2	0.195+dfsg.1-2ubuntu0.1~esm1
`mame` Ubuntu:Pro:20.04:LTS From an advisory covering 3 CVEs	before 0.220+dfsg.1-1ubuntu0.1~esm1, plus listed versions 0.206+dfsg.1-10.214+dfsg.1-20.215+dfsg.1-10.217+dfsg.1-10.217+dfsg.1-1build10.218+dfsg.1-10.220+dfsg.1-1	0.220+dfsg.1-1ubuntu0.1~esm1
`mame` Ubuntu:Pro:22.04:LTS From an advisory covering 3 CVEs	before 0.242+dfsg.1-1ubuntu0.1~esm1, plus listed versions 0.235+dfsg.1-1ubuntu10.237+dfsg.1-10.238+dfsg.1-10.239+dfsg.1-10.240+dfsg.1-10.242+dfsg.1-1	0.242+dfsg.1-1ubuntu0.1~esm1
`mame` Ubuntu:Pro:24.04:LTS From an advisory covering 3 CVEs	before 0.264+dfsg.1-1ubuntu0.1~esm1, plus listed versions 0.257+dfsg.1-10.258+dfsg.1-1build10.261+dfsg.1-10.261+dfsg.1-1build20.261+dfsg.1-1build30.264+dfsg.1-1	0.264+dfsg.1-1ubuntu0.1~esm1
`mame` Ubuntu:25.10 From an advisory covering 3 CVEs	before 0.277+dfsg.1-4ubuntu0.1, plus listed versions 0.275+dfsg.1-30.277+dfsg.1-4	0.277+dfsg.1-4ubuntu0.1

History

History
Recorded	Changed	Sources
Nov 6, 2026	affected, 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-2022-34300 is a high vulnerability (CVSS 8.8) in Tinyexr Project Tinyexr, published June 22, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.51%, the 74th percentile. Fixed in tinyexr 1.0.1+dfsg-4.

References

Show 13 moreShow less