CVE-2021-33388

dpic 2021.04.10 has a Heap Buffer Overflow in themakevar() function in dpic.y

9.8 CriticalFix available

dpic 2021.04.10 has a Heap Buffer Overflow in themakevar() function in dpic.y

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: High

Exploit likelihood

0.76%Up 0.7 points since Aug 25, 2023

What each source reports

NVD Score used 9.8

dpic 2021.04.10 has a Heap Buffer Overflow in themakevar() function in dpic.y

Record: CVE-2021-33388
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-787
Updated: 2026-11-02

CVE List No score

dpic 2021.04.10 has a Heap Buffer Overflow in themakevar() function in dpic.y

Record: CVE-2021-33388
Updated: 2026-11-02

EUVDEUVD-2021-20094 No score

dpic 2021.04.10 has a Heap Buffer Overflow in themakevar() function in dpic.y

Record: EUVD-2021-20094
Updated: 2026-11-03

GitHub AdvisoriesGHSA-fhch-25m3-c9rc 9.8

dpic 2021.04.10 has a Heap Buffer Overflow in themakevar() function in dpic.y

dpic 2021.04.10 has a Heap Buffer Overflow in themakevar() function in dpic.y

Record: GHSA-fhch-25m3-c9rc
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-787
Updated: 2026-11-02

OSV 9.8

dpic 2021.04.10 has a Heap Buffer Overflow in themakevar() function in dpic.y

Record: CVE-2021-33388
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

OSVDEBIAN-CVE-2021-33388 9.8

dpic 2021.04.10 has a Heap Buffer Overflow in themakevar() function in dpic.y

Record: DEBIAN-CVE-2021-33388
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

OSVUBUNTU-CVE-2021-33388 9.8

dpic 2021.04.10 has a Heap Buffer Overflow in themakevar() function in dpic.y

Record: UBUNTU-CVE-2021-33388
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

OSVopenSUSE-SU-2024:13194-1 No score

dpic-2023.02.01-2.1 on GA media

These are all security issues fixed in the dpic-2023.02.01-2.1 package on the GA media of openSUSE Tumbleweed.

Record: openSUSE-SU-2024:13194-1
Updated: 2026-11-02

Affected products

dpic project dpic

Affected packages

Affected packages
Package	Affected	Fixed
`dpic` Debian:12	before 2021.11.01-1	2021.11.01-1
`dpic` Debian:13	before 2021.11.01-1	2021.11.01-1
`dpic` Debian:14	before 2021.11.01-1	2021.11.01-1
`dpic` Ubuntu:16.04:LTS	All versions, plus listed versions 2014.01.01+dfsg1-0ubuntu1	None known
`dpic` Ubuntu:18.04:LTS	All versions, plus listed versions 2014.01.01+dfsg1-0ubuntu12014.01.01+dfsg1-0ubuntu2	None known
`dpic` Ubuntu:20.04:LTS	All versions, plus listed versions 2014.01.01+dfsg1-0ubuntu22019.08.30-42019.11.30-12020.03.01-1	None known
`dpic` Ubuntu:22.04:LTS	All versions, plus listed versions 2021.01.01-12021.11.01-1	None known
`dpic` Ubuntu:24.04:LTS	All versions, plus listed versions 2023.06.01-1	None known
`dpic` Ubuntu:25.10	All versions, plus listed versions 2023.06.01-1	None known
`dpic` Ubuntu:26.10	All versions, plus listed versions 2023.06.01-1build1	None known
`dpic` Ubuntu:26.04:LTS	All versions, plus listed versions 2023.06.01-12023.06.01-1build1	None known

History

History
Recorded	Changed	Sources
Nov 6, 2026	facts
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-2021-33388 is a critical vulnerability (CVSS 9.8) in Dpic Project Dpic, published August 22, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.76%, the 55th percentile. Fixed in dpic 2021.11.01-1.

References

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