CVE-2021-32066Not scoredCWE-755

CVE-2021-32066: Ruby-Lang vulnerability

Ruby-Lang · Ruby

Vendor fix available · Affected: Ruby-Lang · Exploitation: possible (1 to 10%)

Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.

2.9%probability of exploitation in the next 30 days

87th percentile

050100

Higher than 87% of scored CVEs

Not scored yet. The CVE record carries no CVSS score.

DescriptionCVE.org

An issue was discovered in Ruby through 2.6.7, 2.7.x through 2.7.3, and 3.x through 3.0.1. Net::IMAP does not raise an exception when StartTLS fails with an an unknown response, which might allow man-in-the-middle attackers to bypass the TLS protections by leveraging a network position between the client and the registry to block the StartTLS command, aka a "StartTLS stripping attack."

On the Atlas

Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.

Open the Atlas

Exploitation: Possible (1 to 10%). EPSS between 1% and 10%.
CISA KEV: Not listed
Public check: No public nuclei template
Weakness: Improper Handling of Exceptional Conditions · Input Validation and Logic
Vendor: Ruby-Lang
Published: August 2021
Band: Possible (1 to 10%), August 2021
Bounty reports: 1 disclosed on HackerOne

Disclosed bug bounty reports about CVE-2021-32066

The reports on HackerOne that name this CVE, with HackerOne's own outcome. Titles and metadata only.

imap: StartTLS stripping attack (CVE-2016-0772).Ruby · 2021 · medium severityValid

CoverageNo articles yet

No CyberSIXT article names CVE-2021-32066 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.