November 15, 2026

CVE Watchtower

CVE-2014-7187Gnu Bash Improper Restriction of Operations within the Bounds of a Memory Buffer

NVD

Vulnerability Summary

Off-by-one error in the read_token_word function in parse.y in GNU Bash through 4.3 bash43-026 allows remote attackers to cause a denial of service (out-of-bounds array access and application crash) or possibly have unspecified other impact via deeply nested for loops, aka the "word_lineno" issue.
Severity Level
UNKNOWN
Published Date
Sep 28, 2014
Last Modified
May 6, 2026
Exploitation Status
Public exploit available
EPSS Score (30-Day)
89.86%Probability
Root Weakness (CWE)
CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer ↗
The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the intended boundary of the buffer.

Affected & Patched Versions

Affected Versions
  • Gnu Bash
Patched Versions
No patched version published yet
Until a fix ships, reduce exposure:
  • Restrict access to the affected service or interface to trusted networks.
  • Disable the affected feature if you do not need it.
  • Watch the vendor advisory for a firmware or software update.

What to do

Prioritize this fix. Exploit code is public, so attacks can follow quickly.

  1. Check whether you run Gnu Bash and which version.
  2. No patched version is listed yet. Limit access to the affected service to trusted networks, and disable the feature if you can.
  3. Subscribe to the vendor advisory so you learn when a fix ships.
  4. Review logs and exposed services for signs of earlier compromise.

Timeline

  • Sep 28, 2014Published
  • May 6, 2026Record last modified

Score, severity and exploitation changes are tracked from the day Watchtower started logging them.

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External References

Data last checked: Nov 15, 2026 00:23 UTC