CVE-2021-45930
Qt SVG in Qt 5.0.0 through 5.15.2 and 6.0.0 through 6.2.1 has an out-of-bounds write in QtPrivate::QCommonArrayOps<QPainterPath::Element>::growAppend (called from QPainterPath::addPath and QPathClipper::intersect).
Does this matter?
Lower severity and a low EPSS score (1.46%). Track it; it rarely justifies an emergency change on its own.
Description
Qt SVG in Qt 5.0.0 through 5.15.2 and 6.0.0 through 6.2.1 has an out-of-bounds write in QtPrivate::QCommonArrayOps<QPainterPath::Element>::growAppend (called from QPainterPath::addPath and QPathClipper::intersect).
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- EPSS
- 1.46% probability · 73th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-787
- Affected
- qt/qtsvg · fedoraproject/fedora · debian/debian linux
- Source
- cve@mitre.org
EPSS 1.5% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=37025Exploit, Issue Tracking, Third Party Advisory
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=37306Exploit, Issue Tracking, Third Party Advisory
- https://github.com/google/oss-fuzz-vulns/blob/main/vulns/qt/OSV-2021-1121.yamlExploit, Third Party Advisory
- https://github.com/qt/qtsvg/commit/36cfd9efb9b22b891adee9c48d30202289cfa620Patch, Third Party Advisory
- https://github.com/qt/qtsvg/commit/79bb9f51fa374106a612d17c9d98d35d807be670Patch, Third Party Advisory
- https://github.com/qt/qtsvg/commit/a3b753c2d077313fc9eb93af547051b956e383fcPatch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/01/msg00020.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/01/msg00022.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2023/08/msg00028.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4GKOKVCSDZSOWWR3HOW5XUIUJC4MKQY5/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GZIXNSX7FV733TWTTLY6FHSH3SCNQKKD/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/V75XNX4GDB64N5BSOAN474RUXXS5OHRU/
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=37025Exploit, Issue Tracking, Third Party Advisory
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=37306Exploit, Issue Tracking, Third Party Advisory
- https://github.com/google/oss-fuzz-vulns/blob/main/vulns/qt/OSV-2021-1121.yamlExploit, Third Party Advisory
- https://github.com/qt/qtsvg/commit/36cfd9efb9b22b891adee9c48d30202289cfa620Patch, Third Party Advisory
- https://github.com/qt/qtsvg/commit/79bb9f51fa374106a612d17c9d98d35d807be670Patch, Third Party Advisory
- https://github.com/qt/qtsvg/commit/a3b753c2d077313fc9eb93af547051b956e383fcPatch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/01/msg00020.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/01/msg00022.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2023/08/msg00028.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4GKOKVCSDZSOWWR3HOW5XUIUJC4MKQY5/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GZIXNSX7FV733TWTTLY6FHSH3SCNQKKD/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/V75XNX4GDB64N5BSOAN474RUXXS5OHRU/
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.