CVE-2015-7874

CRITICALNVD 9.89.8—

9.8

Buffer overflow in the chat server in KiTTY Portable 0.65.0.2p and earlier allows remote attackers to execute arbitrary code via a long nickname.

CVSS v3: 9.8
EG Score: 9.8(medium)
EPSS: 96.0%
KEV: Not listed

Published

January 15, 2020

Last Modified

November 21, 2024

References (2)

cve@mitrehttps://www.exploit-db.com/exploits/39119/
af854a3a-2127-422b-91ae-364da2661108https://www.exploit-db.com/exploits/39119/

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-120Buffer Copy without Checking Size (Classic Buffer Overflow)

Data Freshness Timeline

(refreshed 7× in last 7d / 7× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-05-27 13:38 UTCepss_batch
2026-05-27 13:38 UTCepss_batch
2026-05-27 09:13 UTCEG score recompute
2026-05-27 09:13 UTCGHSA enrichment
2026-05-26 07:16 UTCepss_batch
2026-05-26 07:16 UTCepss_batch
2026-05-24 16:43 UTCepss_batch

Frequently asked(5)

What is CVE-2015-7874?

CVE-2015-7874 is a critical vulnerability published on January 15, 2020. Buffer overflow in the chat server in KiTTY Portable 0.65.0.2p and earlier allows remote attackers to execute arbitrary code via a long nickname.

When was CVE-2015-7874 disclosed?

CVE-2015-7874 was first published in the National Vulnerability Database on January 15, 2020, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2015-7874 actively exploited?

CVE-2015-7874 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 96.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2015-7874?

CVE-2015-7874 has a CVSS v3 base score of 9.8 (NVD).

How do I remediate CVE-2015-7874?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2015-7874, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2015-7874

📅 Published

🔄 Last Modified

🔗 References (2)