HOMEVULNERABILITIESCVE-2020-27828
HIGH

CVE-2020-27828

CWE-20Published: December 11, 2020· Updated: Jun 17, 2026

7.8
CVSS v3.1

Official Description

There's a flaw in jasper's jpc encoder in versions prior to 2.0.23. Crafted input provided to jasper by an attacker could cause an arbitrary out-of-bounds write. This could potentially affect data confidentiality, integrity, or application availability.

NVD Source

Technical Analysis

CVE-2020-27828 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 7.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.None
User InteractionRequired
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected Vendors & Products

Fedora1 product(s)
fedora
jasper_project1 product(s)
jasper
Source: NVD CPE · 3 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttps://bugzilla.redhat.com/show_bug.cgi?id=1905201
PATCHhttps://bugzilla.redhat.com/show_bug.cgi?id=1905201
ADVISORYhttps://github.com/jasper-software/jasper/issues/252
ADVISORYhttps://github.com/jasper-software/jasper/issues/252

All References (12)

→
https://bugzilla.redhat.com/show_bug.cgi?id=1905201Issue Tracking · Patch · Third Party Advisory
→
https://github.com/jasper-software/jasper/issues/252Exploit · Third Party Advisory
→
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/COBEVDBUO3QTNR6YQBBTIQKNIB6W3MJ2/
→
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EBZZ2SNTQ4BSA6PNJCTOAKXIAXYNNF6V/
→
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/N4ALB4SXHURLVWKAOKYRNJXPABW3M22M/
→
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UPOVZTSIQPW2H4AFLMI3LHJEZGBVEQET/
→
https://bugzilla.redhat.com/show_bug.cgi?id=1905201Issue Tracking · Patch · Third Party Advisory
→
https://github.com/jasper-software/jasper/issues/252Exploit · Third Party Advisory
→
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/COBEVDBUO3QTNR6YQBBTIQKNIB6W3MJ2/
→
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EBZZ2SNTQ4BSA6PNJCTOAKXIAXYNNF6V/
→
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/N4ALB4SXHURLVWKAOKYRNJXPABW3M22M/
→
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UPOVZTSIQPW2H4AFLMI3LHJEZGBVEQET/

Quick Facts

CVE IDCVE-2020-27828
CVSS Score7.8 / 10
SeverityHIGH
WeaknessCWE-20
CISA KEVNo
Affected2 vendor(s)
PublishedDec 11, 2020

Related CVEs (CWE-20)

CVE-2026-34910
KEV10.0
CVE-2021-21321
10.0
CVE-2020-12388
10.0
CVE-2020-6962
10.0
CVE-2020-12389
10.0
CVE-2021-23279
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2020-27828 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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