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CVE-2017-8359

32
FAUCET Score

CVE-2017-8359 describes a critical out-of-bounds write vulnerability in Google gRPC, specifically affecting versions prior to 2017-03-29. This heap-based use-after-free flaw, related to the grpc_call_destroy function, allows for remote, unauthenticated attackers to achieve high impact on confidentiality, integrity, and availability. While no public exploit code or active exploitation has been observed, the vulnerability garners significant community discussion, indicating potential interest.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.2.1CPE matchmatch criteria
cpe:2.3:a:grpc:grpc:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

9.8CRITICAL

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
3.08%
Probability of exploitation in next 30 days
EPSS Percentile
86.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0308 is in the 73rd percentile among its peer group of 36,829 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

References

bugs.chromium.org / p/oss-fuzz/issues/detail
ExploitThird Party Advisory
github.com / grpc/grpc/pull/10353
PatchThird Party Advisory
securityfocus.com / bid/98280
Third Party AdvisoryVDB Entry