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CVE-2024-34251

20
FAUCET Score

CVE-2024-34251 is an out-of-bounds memory read vulnerability in Bytecode Alliance wasm-micro-runtime v2.0.0, specifically within the "block_type_get_arity" function. This flaw allows a remote attacker to trigger a denial of service. With a CVSS score of 7.5 (High), it can be exploited over the network with low complexity and no user interaction, leading to high availability impact. Currently, there is no public exploit code, active exploitation, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
2.0.0CPE matchmatch criteria
cpe:2.3:a:bytecodealliance:webassembly_micro_runtime:2.0.0:*:*:*:*:*:*:*

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
0.76%
Probability of exploitation in next 30 days
EPSS Percentile
51.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0076 is in the 27th percentile among its peer group of 51,551 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 Advisories (1)

microsoft2024-May/CVE-2024-34251

An out-of-bound memory read vulnerability was discovered in Bytecode Alliance wasm-micro-runtime v2.0.0 which allows a remote attacker to cause a denial of service via the "block_type_get_arity" function in core/iwasm/interpreter/wasm.h.

May 14, 2024

References

github.com / bytecodealliance/wasm-micro-runtime/issues/3347
ExploitIssue Tracking