CVE-2019-10778Public exploitNetwork attack vector

Arbitrary command execution via unsanitized common name

Published Jan 8, 2020 · Updated Aug 4, 2024

Command injection in Guy Bedford devcert-sanscache before 0.4.7 allows remote attackers to execute arbitrary OS commands through a common name. The generateDevCert function accepts commonName under a match pattern that permits shell metacharacters, then passes it into OpenSSL command strings executed by child_process.execSync. Exploitation requires a consuming application to pass attacker-controlled certificate names to the library; successful injection runs commands with that application's privileges.

CVSS severity9.8
Critical
EPSS probability3.45%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Command injection in Guy Bedford devcert-sanscache before 0.4.7 allows remote attackers to execute arbitrary OS commands through a common name. The generateDevCert function accepts commonName under a match pattern that permits shell metacharacters, then passes it into OpenSSL command strings executed by child_process.execSync. Exploitation requires a consuming application to pass attacker-controlled certificate names to the library; successful injection runs commands with that application's privileges.

The record

CVE
CVE-2019-10778
Published
Jan 8, 2020
Updated
Aug 4, 2024
Vendor
Guy Bedford
Product
devcert-sanscache
Classifications
CWE-78, T1059
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 8, 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=All versions prior to version 0.4.7

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Guy Bedford · devcert-sanscacheversion=All versions prior to version 0.4.7

Published CVSS scores

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8GitHub Advisory DatabaseCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
7.5NIST NVDAV:N/AC:L/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.

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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 exploitPublished

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
T1059Command and Scripting Interpreter

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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