CVE-2020-9563

Code execution via PostScript CharString heap overflow

Published Jun 26, 2020 · Updated May 5, 2025

Heap overflow in Adobe Bridge 10.0.1 and earlier allows remote attackers to execute arbitrary code by opening a crafted PostScript file. The PostScript CharString parser copies user-supplied data into a heap buffer without first validating its length. Exploitation requires the target to visit a malicious page or open the file, and the resulting code runs in the current process context.

CVSS severity7.8
High
EPSS probability5.17%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Heap overflow in Adobe Bridge 10.0.1 and earlier allows remote attackers to execute arbitrary code by opening a crafted PostScript file. The PostScript CharString parser copies user-supplied data into a heap buffer without first validating its length. Exploitation requires the target to visit a malicious page or open the file, and the resulting code runs in the current process context.

The record

CVE
CVE-2020-9563
Published
Jun 26, 2020
Updated
May 5, 2025
Vendor
Adobe
Product
Adobe Bridge
Classifications
CWE-787, T1204.002
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 26, 2020CVE publishedPublication date reported by the CVE source.
  2. May 5, 2025Record 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=10.0.1 and earlier version versions

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Adobe · Adobe Bridgeversion=10.0.1 and earlier version versions

Published CVSS scores

9.3NIST NVDAV:N/AC:M/Au:N/C:C/I:C/A:C
7.8Trend Micro Zero Day InitiativeCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
7.8CISA-ADPCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/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.

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)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-787Out-of-bounds Write
T1204.002User Execution: Malicious File

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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