CVE-2018-15501
CVSS v3
7.5
HIGH
EPSS Score
4.4 %
exploit probability, as of 2026-09-25
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
In ng_pkt in transports/smart_pkt.c in libgit2 before 0.26.6 and 0.27.x before 0.27.4, a remote attacker can send a crafted smart-protocol "ng" packet that lacks a '\\0' byte to trigger an out-of-bounds read that leads to DoS.
Technical details
- Published
- 2018-08-18
Frequently asked questions
What is CVE-2018-15501?
In ng_pkt in transports/smart_pkt.c in libgit2 before 0.26.6 and 0.27.x before 0.27.4, a remote attacker can send a crafted smart-protocol "ng" packet that lacks a '\\0' byte to trigger an out-of-bounds read that leads to DoS.
Is CVE-2018-15501 actively exploited?
Active exploitation of CVE-2018-15501 has not been confirmed. Its EPSS score was 4.4% on 2026-09-25, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2018-15501?
CVE-2018-15501 has a CVSS v3 base score of 7.5 (HIGH severity).
Is CVE-2018-15501 affecting your environment?
Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.
No credit card required · 500 free checks/month · Free API key
Other 2018 vulnerabilities worth triaging
Ranked by exploit probability (EPSS).