CVE-2018-11033

The DCTStream::readHuffSym function in Stream.cc in the DCT decoder in xpdf before 4.00 allows...

7.8 High

The DCTStream::readHuffSym function in Stream.cc in the DCT decoder in xpdf before 4.00 allows remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact via crafted JPEG data.

Attack profile

How easy it is to exploit

Attack vector: Local
Complexity: Low
Privileges needed: None
User interaction: Required

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: High

Exploit likelihood

1.25%Up 0.6 points since Apr 14, 2021

What each source reports

NVD Score used 7.8

Record: CVE-2018-11033
CVSS 3.0: 7.8 HighCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS 2.0: 6.8 MediumAV:N/AC:M/Au:N/C:P/I:P/A:P
Weakness: CWE-119
Updated: 2026-11-02

CVE List No score

Record: CVE-2018-11033
Updated: 2026-11-02

EUVDEUVD-2018-3082 No score

Record: EUVD-2018-3082
Updated: 2026-11-03

GitHub AdvisoriesGHSA-cx54-wxpv-wvvj 7.8

The DCTStream::readHuffSym function in Stream.cc in the DCT decoder in xpdf before 4.00 allows...

Record: GHSA-cx54-wxpv-wvvj
CVSS 3.0: 7.8 HighCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness: CWE-119
Updated: 2026-11-02

OSV 7.8

Record: CVE-2018-11033
CVSS 3.0: 7.8 HighCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated: 2026-11-02

OSVDEBIAN-CVE-2018-11033 7.8

Record: DEBIAN-CVE-2018-11033
CVSS 3.0: 7.8 HighCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated: 2026-11-02

OSVUBUNTU-CVE-2018-11033 7.8

Record: UBUNTU-CVE-2018-11033
CVSS 3.0: 7.8 HighCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated: 2026-11-02

Affected products

xpdfreader xpdf

Affected packages

Affected packages
Package	Affected	Fixed
`xpdf` Debian:12	All versions, plus listed versions 3.04+git20220601-13.04+git20231213-13.04+git20240118-13.04+git20240124-13.04+git20240202-1 Show 5 moreShow less 3.04+git20240613-13.04+git20250103-13.04+git20250304-13.04+git20260220-13.04+git20260802-1	None known
`xpdf` Debian:13	All versions, plus listed versions 3.04+git20250304-13.04+git20260220-13.04+git20260802-1	None known
`xpdf` Debian:14	All versions, plus listed versions 3.04+git20250304-13.04+git20260220-13.04+git20260802-1	None known
`ipe` Ubuntu:16.04:LTS	All versions, plus listed versions 7.1.4-2.17.1.8-17.1.10-17.1.10-1.1	None known
`xpdf` Ubuntu:16.04:LTS	All versions, plus listed versions 3.03-17ubuntu23.03-17ubuntu33.03-17ubuntu53.03-183.04-13.04-1build13.04-1ubuntu13.04-1ubuntu1.1	None known
`ipe` Ubuntu:18.04:LTS	All versions, plus listed versions 7.2.7-27.2.7-3	None known
`xpdf` Ubuntu:18.04:LTS	All versions, plus listed versions 3.04-4build13.04-53.04-5ubuntu23.04-6ubuntu13.04-7	None known
`ipe` Ubuntu:20.04:LTS	All versions, plus listed versions 7.2.9-17.2.13-27.2.13-2build1	None known
`ipe` Ubuntu:22.04:LTS	All versions, plus listed versions 7.2.23+dfsg1-27.2.24+dfsg1-17.2.24+dfsg1-1build1	None known
`xpdf` Ubuntu:22.04:LTS	All versions, plus listed versions 3.04+git20210103-3build13.04+git20211021-13.04+git20211021-1ubuntu13.04+git20220201-1	None known

Show 8 moreShow less

Affected packages
Package	Affected	Fixed
`ipe` Ubuntu:24.04:LTS	All versions, plus listed versions 7.2.27+dfsg1-27.2.28-27.2.28-2.1build27.2.28-2.1build37.2.28-2.1build4	None known
`xpdf` Ubuntu:24.04:LTS	All versions, plus listed versions 3.04+git20220601-1ubuntu13.04+git20220601-1ubuntu23.04+git20231213-13.04+git20240118-13.04+git20240124-1 Show 4 moreShow less 3.04+git20240202-13.04+git20240202-1build13.04+git20240202-1build23.04+git20240202-1build3	None known
`ipe` Ubuntu:25.10	All versions, plus listed versions 7.2.30-1build1	None known
`xpdf` Ubuntu:25.10	All versions, plus listed versions 3.04+git20250304-1	None known
`ipe` Ubuntu:26.10	All versions, plus listed versions 7.2.30-1build27.2.30-2	None known
`xpdf` Ubuntu:26.10	All versions, plus listed versions 3.04+git20260220-13.04+git20260220-1ubuntu13.04+git20260802-1	None known
`ipe` Ubuntu:26.04:LTS	All versions, plus listed versions 7.2.30-1build17.2.30-1build2	None known
`xpdf` Ubuntu:26.04:LTS	All versions, plus listed versions 3.04+git20250304-13.04+git20250304-1build13.04+git20260220-1	None known

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

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

In short

CVE-2018-11033 is a high vulnerability (CVSS 7.8) in Xpdfreader Xpdf, published May 14, 2018. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.25%, the 69th percentile. No source names a fixed version.