CVE-2019-19911Network attack vector

Service interruption via oversized FPX band count

Published Jan 5, 2020 · Updated Aug 5, 2024

Resource exhaustion in Pillow before 6.2.2 allows remote attackers to crash image-processing services with a crafted FPX image. FpxImagePlugin._open_index reads an unvalidated signed 32-bit band count from the file and passes it directly to range without rejecting values above four. An application must process an attacker-supplied FPX file; Linux 64-bit processes can be killed by the OOM killer, while Windows 32-bit Python raises memory-related exceptions.

CVSS severity8.7
High
EPSS probability2.12%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Resource exhaustion in Pillow before 6.2.2 allows remote attackers to crash image-processing services with a crafted FPX image. FpxImagePlugin._open_index reads an unvalidated signed 32-bit band count from the file and passes it directly to range without rejecting values above four. An application must process an attacker-supplied FPX file; Linux 64-bit processes can be killed by the OOM killer, while Windows 32-bit Python raises memory-related exceptions.

The record

CVE
CVE-2019-19911
Published
Jan 5, 2020
Updated
Aug 5, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-190, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 5, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 5, 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

8.7GitHub Advisory DatabaseCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
5.0NIST NVDAV:N/AC:L/Au:N/C:N/I:N/A:P
7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/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.

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-190Integer Overflow or Wraparound
T1499.004Application or System Exploitation

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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