CVE-2020-35907

FAUCET Score

CVE-2020-35907 describes a NULL pointer dereference vulnerability in the futures-task crate for Rust, specifically affecting versions prior to 0.3.5. This flaw, rated Medium severity (CVSS 5.5), could lead to a denial of service (availability impact) if a local attacker with low privileges executes a specially crafted program. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this vulnerability.

Impacted Technologies

Vendor	Product	Version(s)	CPE
		< 0.3.5CPE matchmatch criteria	cpe:2.3:a:rust-lang:futures-task::::::::

CVSS Data

CVSS version used by this source: 3.1

5.5MEDIUM

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

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

Exploitability Score

1.8

Impact Score

3.6

CvssVersion

3.1

Exploit Intelligence

EPSS Score

0.40%

Probability of exploitation in next 30 days

EPSS Percentile

32.8%

Percentile rank of EPSS score among Peer Group

As of 2026-07-24

Model: v2026.06.15

This CVE's current EPSS score of 0.0040 is in the 88th percentile among its peer group of 15,932 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 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 (1)

rustpatch availablevia ghsa

Product: futures-taskFixed in: 0.3.5

Vendor Advisories (1)

rustGHSA-p9m5-3hj7-cp5rmedium

futures_task::noop_waker_ref can segfault due to dereferencing a NULL pointer

May 24, 2022

References

rustsec.org / advisories/RUSTSEC-2020-0061.html

ExploitThird Party Advisory