CVE-2017-13099

medium

Published 2017-12-13 · Modified 2026-05-13

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CVSS v3

5.9

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

CVSS v4 NEW

—

not yet in upstream

VIR risk

6.9

Description

wolfSSL prior to version 3.12.2 provides a weak Bleichenbacher oracle when any TLS cipher suite using RSA key exchange is negotiated. An attacker can recover the private key from a vulnerable wolfSSL application. This vulnerability is referred to as "ROBOT."

Predictions

Exploit likelihood

69%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.

✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

Exploits

Public proof-of-concept code below. AS-IS, for defenders and authorised testing only.

Metasploit modules

auxiliary_scanner/ssl/bleichenbacher_oracle rank 300

Scanner for Bleichenbacher Oracle in RSA PKCS #1 v1.5

Source code queued for fetch — refresh in a moment.

OS impact

OS	Version	Status	Fixed in
debian	bookworm	fixed	`3.13.0+dfsg-1`
debian	bullseye	fixed	`3.13.0+dfsg-1`
debian	forky	fixed	`3.13.0+dfsg-1`
debian	sid	fixed	`3.13.0+dfsg-1`
debian	trixie	fixed	`3.13.0+dfsg-1`

Application impact

Vendor	Product	Versions	Fixed
wolfssl	wolfssl	`{"endExcluding":"3.12.2"}`	`3.12.2`
arubanetworks	instant	`{"endExcluding":"6.5.4.6"}`	`6.5.4.6`

References

CWEs

CWE-203

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.