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CVE-2018-16323· NVD / CVE Program· CNA mitre

ReadXBMImage in coders/xbm.c in ImageMagick before 7.0.8-9 leaves data uninitialized when processing an XBM file that has a negative pixel v

Noroxi assessment

Priority: Plan (action score 41/100)

  • Public proof-of-concept code exists (Exploit-DB, GitHub); there is no record of exploitation in the wild.
  • Probability of exploitation in the next 30 days: 49.3% (FIRST EPSS); higher than 98.8% of all records.
  • Anyone who can reach it over the internet 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: imagemagick (Debian:12) 8:6.9.10.14+dfsg-1; ImageMagick (SUSE:Linux Enterprise Desktop 12 SP3) 6.8.8.1-71.74.1; ImageMagick (SUSE:Linux Enterprise Module for Desktop Applications 15) 7.0.7.34-3.24.1.

Add it to your regular patch cycle. Upgrade to imagemagick (Debian:12) 8:6.9.10.14+dfsg-1; ImageMagick (SUSE:Linux Enterprise Desktop 12 SP3) 6.8.8.1-71.74.1; ImageMagick (SUSE:Linux Enterprise Module for Desktop Applications 15) 7.0.7.34-3.24.1 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

ReadXBMImage in coders/xbm.c in ImageMagick before 7.0.8-9 leaves data uninitialized when processing an XBM file that has a negative pixel value. If the affected code is used as a library loaded into a process that includes sensitive information, that information sometimes can be leaked via the image data.

MediumCVSS 6.5 · v3.1—Proof of concept Fix available
Published
Sep 1, 2018
Updated
Jun 16, 2026
EPSS
49.3% · 98th percentile

Report tools

JSON

Action score

41

Plan

Add it to your regular patch cycle.

CVSS
26 / 40 · 6.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
15 / 30 · 49.3%

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • Proof of concept exists, no weaponized module
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2018-16323

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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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.

VendorProduct
imagemagickimagemagick
canonicalubuntu linux

Affected versions

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

  • canonical ubuntu linux14.04
  • canonical ubuntu linux16.04
  • canonical ubuntu linux18.04
  • canonical ubuntu linux18.10
  • canonical ubuntu linux19.04
  • imagemagick imagemagick7.0.0-0 and later · before 7.0.8-9
  • imagemagick imagemagickbefore 6.9.10-9

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12imagemagickbefore 8:6.9.10.14+dfsg-18:6.9.10.14+dfsg-1
SUSE:Linux Enterprise Desktop 12 SP3ImageMagickbefore 6.8.8.1-71.74.16.8.8.1-71.74.1
SUSE:Linux Enterprise Module for Desktop Applications 15ImageMagickbefore 7.0.7.34-3.24.17.0.7.34-3.24.1
SUSE:Linux Enterprise Software Development Kit 11 SP4GraphicsMagickbefore 1.2.5-78.72.11.2.5-78.72.1
SUSE:Linux Enterprise Software Development Kit 11 SP4ImageMagickbefore 6.4.3.6-78.74.16.4.3.6-78.74.1

Other highest-scoring records for the same primary product.

  • CVE-2016-3714The (1) EPHEMERAL, (2) HTTPS, (3) MVG, (4) MSL, (5) TEXT, (6) SHOW, (7) WIN, and (8) PLT coders in ImageMagick before 6.9.3-10 and 7.x beforKEV
    92Now
  • CVE-2016-3718The (1) HTTP and (2) FTP coders in ImageMagick before 6.9.3-10 and 7.x before 7.0.1-1 allow remote attackers to conduct server-side request KEV
    75This week
  • CVE-2016-3715The EPHEMERAL coder in ImageMagick before 6.9.3-10 and 7.x before 7.0.1-1 allows remote attackers to delete arbitrary files via a crafted imKEV
    75This week
  • CVE-2022-44268ImageMagick 7.1.0-49 is vulnerable to Information Disclosure.
    53Plan
  • CVE-2022-44267ImageMagick 7.1.0-49 is vulnerable to Denial of Service.
    49Plan
  • CVE-2016-5841Integer overflow in MagickCore/profile.c in ImageMagick before 7.0.2-1 allows remote attackers to cause a denial of service (segmentation fa
    43Plan

Remediation

Which version to upgrade to

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

Product / packageFixed versionSource
debian:imagemagick8:6.9.10.14+dfsg-1 · Debian:12Package registry (OSV)
suse:GraphicsMagick1.2.5-78.72.1 · SUSE:Linux Enterprise Software Development Kit 11 SP4Package registry (OSV)
suse:ImageMagick6.8.8.1-71.74.1 · SUSE:Linux Enterprise Desktop 12 SP3Package registry (OSV)

Exploit status

Proof of concept available

A public proof of concept or detection signature exists. Exploit knowledge is out there; don't delay patching.

Evidence

  • Exploit-DB entry ×1
  • Proof-of-concept repository on GitHub ×1

Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.

Public exploit evidence
SourceKindDate
Exploit-DB entrylocal2018-11-19
Proof-of-concept repository on GitHubstars:832018-11-18

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.

  1. Published
  2. First PoC+77 d
  3. TodayOct 18, 2026+2969 d
EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

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

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

  • Anyone who can reach it over the internet 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
none
Availability
none
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
Required
Scope
Unchanged
Confidentiality impact
High
Integrity impact
None
Availability impact
None

CVSS vector

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

nvd-primary

Root cause

The extension requests broader permissions than its function needs and sends the data it collects out for purposes beyond its stated function.

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

json
{  "permissions": ["tabs", "<all_urls>"],  "background": { "service_worker": "analytics.js" }}

Fixed

json
{  "permissions": ["activeTab"],  "host_permissions": ["https://yildiz.example/*"]}

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (2 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records