CVE-2019-1010228: OFFIS.de DCMTK 3.6.3 and below is affected by: Buffer Overflow

Q: How do I fix CVE-2019-1010228?

dcmtk: upgrade to newer than 3.6.3; fedora: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Q: Is CVE-2019-1010228 being exploited?

CVE-2019-1010228 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2019-1010228 affect?

CVE-2019-1010228 affects dcmtk, fedora. Severity is critical (CVSS 9.8). OFFIS.de DCMTK 3.6.3 and below is affected by: Buffer Overflow. The impact is: Possible code execution and confirmed Denial of Service. The component is: DcmRLEDecoder::decompress() (file dcrledec.h, line 122). The attack vector is: Many sc

Q: How urgent is CVE-2019-1010228?

Priority 68/100. Critical severity; EPSS top 5%: very likely to be exploited; Public exploit reference; Remotely exploitable, no login, no user action

This week

CRITICAL 9.8REMOTEUPGRADEMITIGATE

CVE-2019-1010228 is a critical-severity flaw (CVSS 9.8) affecting dcmtk, fedora. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

OFFIS.de DCMTK 3.6.3 and below is affected by: Buffer Overflow. The impact is: Possible code execution and confirmed Denial of Service. The component is: DcmRLEDecoder::decompress() (file dcrledec.h, line 122). The attack vector is: Many scenarios of DICOM file processing (e.g. DICOM to image conversion). The fixed version is: 3.6.4, after commit 40917614e.

Why this priority

Critical severity
EPSS top 5%: very likely to be exploited
Public exploit reference
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	7.8% (top 5%)
CISA exploited list	No
Weakness	CWE-787
Published	2019-07-22
Last modified	2026-06-17

Publisher (CNA): DWF · Vendor: fedoraproject · offis

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2019-07-22 17:15 UTCPublished CVE record published
2026-06-17 02:09 UTCUpdated Record last modified

offis dcmtk UPGRADE

Affected: <= 3.6.3

Fixed in: newer than 3.6.3

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy dcmtk || rpm -q dcmtk || dcmtk --version

2. UPGRADE to newer than 3.6.3 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade dcmtk

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade dcmtk

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

fedoraproject fedora MITIGATE

Affected: 29 · 30

Fixed in: no fixed release known

Safe to downgrade to: a release before 29

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2019-1010228?

dcmtk: upgrade to newer than 3.6.3; fedora: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2019-1010228 being exploited?

CVE-2019-1010228 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2019-1010228 affect?

CVE-2019-1010228 affects dcmtk, fedora. Severity is critical (CVSS 9.8). OFFIS.de DCMTK 3.6.3 and below is affected by: Buffer Overflow. The impact is: Possible code execution and confirmed Denial of Service. The component is: DcmRLEDecoder::decompress() (file dcrledec.h, line 122). The attack vector is: Many sc

How urgent is CVE-2019-1010228?

Priority 68/100. Critical severity; EPSS top 5%: very likely to be exploited; Public exploit reference; Remotely exploitable, no login, no user action

Related CVEs

CVE-2026-5663 HIGH 7.3 UPGRADE A security flaw has been discovered in OFFIS DCMTK up to 3.7.0
CVE-2025-9732 MEDIUM 5.3 UPGRADE A vulnerability was identified in DCMTK up to 3.6.9
CVE-2025-2357 MEDIUM 6.3 DOWNGRADE A vulnerability was found in DCMTK 3.6.9
CVE-2025-25475 HIGH 7.5 DOWNGRADE MITIGATE A NULL pointer dereference in the component /libsrc/dcrleccd.cc of DCMTK v3.6.9+ DEV allows attackers to cause
CVE-2025-25474 MEDIUM 6.5 DOWNGRADE MITIGATE DCMTK v3.6.9+ DEV was discovered to contain a buffer overflow via the component /dcmimgle/diinpxt.h.

References

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