CVE-2019-5187Public exploitNetwork attack vector

Code execution via TIFF strip-buffer overwrite

Published Feb 14, 2020 · Updated Aug 4, 2024

Out-of-bounds write in Accusoft ImageGear 19.5.0 allows attackers to execute code by supplying a crafted TIFF file. TIF_read_stripdata derives its write-loop bound from attacker-controlled ImageWidth and BitsPerSample tags, then stores decoded bits past the dynamically allocated destination buffer. The file must use no compression and planar configuration 2 and must be processed by an application that embeds the affected Windows library.

CVSS severity8.8
High
EPSS probability3.69%
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 19.5.0 allows attackers to execute code by supplying a crafted TIFF file. TIF_read_stripdata derives its write-loop bound from attacker-controlled ImageWidth and BitsPerSample tags, then stores decoded bits past the dynamically allocated destination buffer. The file must use no compression and planar configuration 2 and must be processed by an application that embeds the affected Windows library.

The record

CVE
CVE-2019-5187
Published
Feb 14, 2020
Updated
Aug 4, 2024
Vendor
Accusoft
Product
ImageGear
Classifications
CWE-787, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 14, 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?

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

  1. Affected versionversion=Accusoft ImageGear 19.5.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Accusoft · ImageGearversion=Accusoft ImageGear 19.5.0

Published CVSS scores

9.8Cisco TalosCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
6.8NIST NVDAV:N/AC:M/Au:N/C:P/I:P/A:P
8.8NIST NVDCVSS:3.1/AV:N/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-787Out-of-bounds Write
T1203Exploitation for Client Execution

Public exploit references

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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