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CVE-2020-28591

An out-of-bounds read vulnerability exists in the AMF File AMFParserContext::endElement()...

8.6 HighFix available

An out-of-bounds read vulnerability exists in the AMF File AMFParserContext::endElement() functionality of Slic3r libslic3r 1.3.0 and Master Commit 92abbc42. A specially crafted AMF file can lead to information disclosure. An attacker can provide a malicious file to trigger this vulnerability.

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
High
Integrity
None
Availability
None

Exploit likelihood

1.89%Up 0.8 points since Apr 14, 2021
90%50%10%1%

What each source reports

CVE List Score used 8.6

An out-of-bounds read vulnerability exists in the AMF File AMFParserContext::endElement() functionality of Slic3r libslic3r 1.3.0 and Master Commit 92abbc42. A specially crafted AMF file can lead to information disclosure. An attacker can provide a malicious file to trigger this vulnerability.

Record
CVE-2020-28591
CVSS 3.0
8.6 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
Weakness
CWE-20
Updated
2026-11-02
EUVDEUVD-2020-20989 8.6

An out-of-bounds read vulnerability exists in the AMF File AMFParserContext::endElement() functionality of Slic3r libslic3r 1.3.0 and Master Commit 92abbc42. A specially crafted AMF file can lead to information disclosure. An attacker can provide a malicious file to trigger this vulnerability.

Record
EUVD-2020-20989
CVSS 3.0
8.6 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
Updated
2026-11-03
GitHub AdvisoriesGHSA-jx3c-cqwp-ww97 6.5

An out-of-bounds read vulnerability exists in the AMF File AMFParserContext::endElement()...

An out-of-bounds read vulnerability exists in the AMF File AMFParserContext::endElement() functionality of Slic3r libslic3r 1.3.0 and Master Commit 92abbc42. A specially crafted AMF file can lead to information disclosure. An attacker can provide a malicious file to trigger this vulnerability.

Record
GHSA-jx3c-cqwp-ww97
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Weakness
CWE-125
Updated
2026-11-02
NVD 6.5

An out-of-bounds read vulnerability exists in the AMF File AMFParserContext::endElement() functionality of Slic3r libslic3r 1.3.0 and Master Commit 92abbc42. A specially crafted AMF file can lead to information disclosure. An attacker can provide a malicious file to trigger this vulnerability.

Record
CVE-2020-28591
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
CVSS 3.0
8.6 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
CVSS 2.0
4.3 MediumAV:N/AC:M/Au:N/C:P/I:N/A:N
Weakness
CWE-20, CWE-125
Updated
2026-11-02
OSV 6.5

An out-of-bounds read vulnerability exists in the AMF File AMFParserContext::endElement() functionality of Slic3r libslic3r 1.3.0 and Master Commit 92abbc42. A specially crafted AMF file can lead to information disclosure. An attacker can provide a malicious file to trigger this vulnerability.

Record
CVE-2020-28591
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Updated
2026-11-02
OSVDEBIAN-CVE-2020-28591 6.5

An out-of-bounds read vulnerability exists in the AMF File AMFParserContext::endElement() functionality of Slic3r libslic3r 1.3.0 and Master Commit 92abbc42. A specially crafted AMF file can lead to information disclosure. An attacker can provide a malicious file to trigger this vulnerability.

Record
DEBIAN-CVE-2020-28591
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Updated
2026-11-02
OSVUBUNTU-CVE-2020-28591 6.5

An out-of-bounds read vulnerability exists in the AMF File AMFParserContext::endElement() functionality of Slic3r libslic3r 1.3.0 and Master Commit 92abbc42. A specially crafted AMF file can lead to information disclosure. An attacker can provide a malicious file to trigger this vulnerability.

Record
UBUNTU-CVE-2020-28591
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
CVSS 3.0
8.6 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
Updated
2026-11-02
OSVMGASA-2021-0276 No score

Updated slic3r package fixes a security vulnerability

An out-of-bounds read vulnerability exists in the AMF File AMFParserContext::endElement() functionality of Slic3r libslic3r 1.3.0 and Master Commit 92abbc42. A specially crafted AMF file can lead to information disclosure. An attacker can provide a malicious file to trigger this vulnerability (CVE-2020-28591).

Record
MGASA-2021-0276
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
slic3r
Debian:12
 before 1.3.0+dfsg1-4
1.3.0+dfsg1-4
slic3r
Mageia:7
 before 1.3.0-1.1.mga7
1.3.0-1.1.mga7
slic3r
Mageia:8
 before 1.3.0-6.1.mga8
1.3.0-6.1.mga8
slic3r
Ubuntu:16.04:LTS
 All versions, plus listed versions
1.2.9+dfsg-21.2.9+dfsg-2build1
 None known
slic3r
Ubuntu:18.04:LTS
 All versions, plus listed versions
1.2.9+dfsg-6.11.2.9+dfsg-81.2.9+dfsg-9
 None known
slic3r
Ubuntu:20.04:LTS
 All versions, plus listed versions
1.3.0+dfsg1-31.3.0+dfsg1-3build11.3.0+dfsg1-3ubuntu1
 None known
slic3r
Ubuntu:22.04:LTS
 All versions, plus listed versions
1.3.0+dfsg1-51.3.0+dfsg1-5build1
 None known
slic3r
Ubuntu:24.04:LTS
 All versions, plus listed versions
1.3.0+dfsg1-5build21.3.0+dfsg1-5build31.3.0+dfsg1-5build41.3.0+dfsg1-5build51.3.0+dfsg1-5build6
 None known
slic3r
Ubuntu:25.10
 All versions, plus listed versions
1.3.0+dfsg1-5.11.3.0+dfsg1-5.1build1
 None known

History

History
RecordedChangedSources
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

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

In short

CVE-2020-28591 is a high vulnerability (CVSS 8.6) in Slic3r Libslic3r, published March 3, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.89%, the 79th percentile. Fixed in slic3r 1.3.0+dfsg1-4.

References

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