CVE-2020-15389Network attack vector

Decompressor crash via stale image pointer destruction

Published Jun 29, 2020 · Updated Aug 4, 2024

Use-after-free in OpenJPEG 2.3.1 and earlier allows attackers to crash opj_decompress via a mixed directory of valid and invalid images. In src/bin/jp2/opj_decompress.c, image and stream pointers persist across loop iterations, allowing an error path to destroy an image that a preceding iteration freed. Exploitation requires directory mode to process a mix of valid and invalid images; the supported consequence is abnormal process termination.

CVSS severity6.5
Medium
EPSS probability2.60%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Use-after-free in OpenJPEG 2.3.1 and earlier allows attackers to crash opj_decompress via a mixed directory of valid and invalid images. In src/bin/jp2/opj_decompress.c, image and stream pointers persist across loop iterations, allowing an error path to destroy an image that a preceding iteration freed. Exploitation requires directory mode to process a mix of valid and invalid images; the supported consequence is abnormal process termination.

The record

CVE
CVE-2020-15389
Published
Jun 29, 2020
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-416, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 29, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

5.8NIST NVDAV:N/AC:M/Au:N/C:P/I:N/A:P
6.5NIST NVDCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-416Use After Free
T1203Exploitation for Client Execution

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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