CVE-2020-13585Network attack vector

Code execution via undersized PSD buffer

Published Feb 10, 2021 · Updated Aug 4, 2024

Out-of-bounds write in Accusoft ImageGear 19.8 allows attackers to execute code by supplying a malformed PSD file. The psd_header_processing function computes a zero-byte heap allocation when a crafted header sets bit depth to zero, then copies attacker-controlled channel bytes past the resulting one-byte allocation. Exploitation requires an application using the SDK to process the crafted PSD, causing memory corruption that can execute code in that application's context.

CVSS severity8.8
High
EPSS probability1.85%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds write in Accusoft ImageGear 19.8 allows attackers to execute code by supplying a malformed PSD file. The psd_header_processing function computes a zero-byte heap allocation when a crafted header sets bit depth to zero, then copies attacker-controlled channel bytes past the resulting one-byte allocation. Exploitation requires an application using the SDK to process the crafted PSD, causing memory corruption that can execute code in that application's context.

The record

CVE
CVE-2020-13585
Published
Feb 10, 2021
Updated
Aug 4, 2024
Vendor
Accusoft
Product
ImageGear
Classifications
CWE-131, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 10, 2021CVE 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?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=Accusoft ImageGear 19.8

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Accusoft · ImageGearversion=Accusoft ImageGear 19.8

Published CVSS scores

9.8Cisco TalosCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
8.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
6.8NIST NVDAV:N/AC:M/Au:N/C:P/I:P/A:P

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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-131Incorrect Calculation of Buffer Size
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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