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CVE-2020-15702

24
FAUCET Score

CVE-2020-15702 is a Time-of-Check to Time-of-Use (TOCTOU) race condition vulnerability in Canonical Apport, affecting Ubuntu Linux. A local attacker with low privileges can exploit this by manipulating process IDs (PIDs) during a crash, potentially escalating privileges to execute arbitrary code. With a CVSS score of 7.0 (High), this vulnerability has high impact on confidentiality, integrity, and availability, but requires high attack complexity. There is no evidence of active exploitation, public exploit code, or significant community discussion beyond a single Reddit mention.

Impacted Technologies

VendorProductVersion(s)CPE
2.20.11-0ubuntu8CPE matchmatch criteria
cpe:2.3:a:canonical:apport:2.20.11-0ubuntu8:*:*:*:*:*:*:*
2.20.11-0ubuntu9CPE matchmatch criteria
cpe:2.3:a:canonical:apport:2.20.11-0ubuntu9:*:*:*:*:*:*:*
2.20.11-0ubuntu10CPE matchmatch criteria
cpe:2.3:a:canonical:apport:2.20.11-0ubuntu10:*:*:*:*:*:*:*
2.20.11-0ubuntu11CPE matchmatch criteria
cpe:2.3:a:canonical:apport:2.20.11-0ubuntu11:*:*:*:*:*:*:*
2.20.11-0ubuntu12CPE matchmatch criteria
cpe:2.3:a:canonical:apport:2.20.11-0ubuntu12:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.0HIGH

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.0
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.50%
Probability of exploitation in next 30 days
EPSS Percentile
39.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0050 is in the 79th percentile among its peer group of 1,516 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.4 InfoSec Media, 0.1 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

seclists.org / fulldisclosure/2025/Jun/9
usn.ubuntu.com / 4449-1
Vendor Advisory
usn.ubuntu.com / 4449-1
Vendor Advisory
usn.ubuntu.com / 4449-2
Vendor Advisory
zerodayinitiative.com / advisories/ZDI-20-979
Third Party AdvisoryVDB Entry