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CVE-2021-46102

24
FAUCET Score

CVE-2021-46102 is an integer overflow vulnerability affecting Solana rBPF versions 0.2.14 to 0.2.16, specifically within the "relocate" function in src/elf.rs due to unchecked sym.st_value input. This vulnerability carries a CVSS score of 7.5 (HIGH), indicating a network-exploitable flaw with low attack complexity that could lead to high availability impact. While no active exploitation, public exploit code, or significant community discussion has been observed, organizations using affected Solana rBPF versions should prioritize patching to mitigate potential risks.

Impacted Technologies

VendorProductVersion(s)CPE
>= 0.2.14, <= 0.2.16CPE matchmatch criteria
cpe:2.3:a:solanalabs:rbpf:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.87%
Probability of exploitation in next 30 days
EPSS Percentile
77.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0187 is in the 60th percentile among its peer group of 51,506 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

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

Remediation

Patch Available

Vendor Patches (2)

github_advisorypatch availablevia nvd_reference
View patch
rustpatch availablevia ghsa
Product: solana_rbpfFixed in: 0.2.17

Vendor Advisories (1)

rustGHSA-xwqr-xmgg-j69qhigh

Integer overflow in solana_rbpf

Jan 28, 2022

References

blocksecteam.medium.com / new-integer-overflow-bug-discovered-in-solana-rbpf-7729717159ee
ExploitThird Party Advisory
github.com / solana-labs/rbpf/blob/c14764850f0b83b58aa013248eaf6d65836c1218/src/elf.rs
ExploitThird Party Advisory
github.com / solana-labs/rbpf/pull/200
PatchThird Party Advisory
github.com / solana-labs/rbpf/pull/236
PatchThird Party Advisory