NVD / CVE Program· CNA redhat

CVE-2021-3624: There is an integer overflow vulnerability in dcraw.

Noroxi assessment

Priority: Monitor (action score 31/100)

The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
Probability of exploitation in the next 30 days: 0.90% (FIRST EPSS); higher than 59.9% of all records.
Someone with local access to the system can trigger it. No account or password is required. A user must open a link or visit a page. No special conditions are required; it is repeatable.
Fixed version: dcraw (Debian:12) 9.28-3; dcraw (openSUSE:Leap 15.3) 9.28.0-150000.3.3.1; dcraw (openSUSE:Tumbleweed) 9.28.0-2.1.

Low priority for now. Upgrade to dcraw (Debian:12) 9.28-3; dcraw (openSUSE:Leap 15.3) 9.28.0-150000.3.3.1; dcraw (openSUSE:Tumbleweed) 9.28.0-2.1 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

There is an integer overflow vulnerability in dcraw. When the victim runs dcraw with a maliciously crafted X3F input image, arbitrary code may be executed in the victim's system.

HighCVSS 7.8 · v3.1—No exploit Fix available

Published: Apr 18, 2022
Updated: Jun 17, 2026
EPSS: 0.9% · 59th percentile
CWE: CWE-20

Report tools

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Action score

Monitor

Low priority for now.

CVSS: 31 / 40 · 7.8 / 10
CISA KEV: 0 / 30 · Not listed
EPSS: 0 / 30 · 0.9%

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No public exploit code on record
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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

Vendor	Product	CPE
dcraw project	dcraw	cpe:2.3:a:dcraw_project:dcraw
debian	debian linux	cpe:2.3:o:debian:debian_linux

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

dcraw project dcraw9.28-2
debian debian linux10.0
debian debian linux11.0
debian debian linux9.0

Versions reported by the vendor

Affected version ranges reported by the assigning authority (redhat). Independent of NVD's CPE analysis and usually ahead of it.

n/a dcraw
- dcraw 9.28-2affected

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

Ecosystem	Package	Affected range	Fix
Debian:12	dcraw	before 9.28-3	9.28-3
openSUSE:Leap 15.3	dcraw	before 9.28.0-150000.3.3.1	9.28.0-150000.3.3.1
openSUSE:Tumbleweed	dcraw	before 9.28.0-2.1	9.28.0-2.1
SUSE:Linux Enterprise Software Development Kit 12 SP5	dcraw	before 9.28.0-3.3.1	9.28.0-3.3.1

Same product

dcraw project: all records

Other highest-scoring records for the same primary product.

CVE-2018-19655A stack-based buffer overflow in the find_green() function of dcraw through 9.28, as used in ufraw-batch and many other products, may allow
36Monitor
CVE-2018-19566A heap buffer over-read in parse_tiff_ifd in dcraw through 9.28 could be used by attackers able to supply malicious files to crash an applic
28Monitor
CVE-2018-19565A buffer over-read in crop_masked_pixels in dcraw through 9.28 could be used by attackers able to supply malicious files to crash an applica
28Monitor

Published before and after this one in the same product

← EarlierCVE-2015-3885May 19, 2015 · Integer overflow in the ljpeg_start function in dcraw 7.00 and earlier allows remote attackers to cause a denial of service (crash) via a cr
19Monitor
← EarlierCVE-2018-19567Nov 26, 2018 · A floating point exception in parse_tiff_ifd in dcraw through 9.28 could be used by attackers able to supply malicious files to crash an app
22Monitor
← EarlierCVE-2018-19568Nov 26, 2018 · A floating point exception in kodak_radc_load_raw in dcraw through 9.28 could be used by attackers able to supply malicious files to crash a
22Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / package	Fixed version	Source
debian:dcraw	9.28-3 · Debian:12	Package registry (OSV)
opensuse:dcraw	9.28.0-150000.3.3.1 · openSUSE:Leap 15.3	Package registry (OSV)
suse:dcraw	9.28.0-3.3.1 · SUSE:Linux Enterprise Software Development Kit 12 SP5	Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

No history yet (it accumulates with the daily EPSS job).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

Someone with local access to the system can trigger it.
No account or password is required.
A user must open a link or visit a page.
No special conditions are required; it is repeatable.

If successful

Confidentiality: high · data can be read
Integrity: high · data or configuration can be modified
Availability: high · the service can be disrupted

Attack vector: Local
Attack complexity: Low
Privileges required: None
User interaction: Required
Scope: Unchanged
Confidentiality impact: High
Integrity impact: High
Availability impact: High

Weakness class (CWE)

CWE-20 · Improper Input Validation

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Attack patterns (CAPEC)

ATT&CK techniques

Change log

Fix✗ → ✓Sep 28, 2026, 10:48 PM UTC

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