Raccoon attack
Priority LOW 25CWE-203Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- Deferred Red Hat: fix deferred
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and Red Hat. Impact type from CWE-203.
Summary
The Raccoon attack exploits a flaw in the TLS specification which can lead to an attacker being able to compute the pre-master secret in connections which have used a Diffie-Hellman (DH) based ciphersuite. In such a case this would result in the attacker being able to eavesdrop on all encrypted communications sent over that TLS connection. The attack can only be exploited if an implementation re-uses a DH secret across multiple TLS connections. Note that this issue only impacts DH ciphersuites and not ECDH ciphersuites. This issue affects OpenSSL 1.0.2 which is out of support and no longer receiving public updates. OpenSSL 1.1.1 is not vulnerable to this issue. Fixed in OpenSSL 1.0.2w (Affected 1.0.2-1.0.2v).
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.04903 92nd percentileScored 2026-11-07
Fix Deferred Red Hat: fix deferred
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| OpenSSL | OpenSSL | Fixed in OpenSSL 1.0.2w (Affected 1.0.2-1.0.2v) | — | No fix listed | CNA |
- OpenSSL VendorOpenSSL Affected Fixed in OpenSSL 1.0.2w (Affected 1.0.2-1.0.2v) Fixed in — No fix listed CNA
CPE configurations NVD · 34
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:* | 1.0.2 – 1.0.2v | Vulnerable | OpenSSL |
| cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* | 16.04 | Vulnerable | Canonical |
| cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* | 18.04 | Vulnerable | Canonical |
| cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* | 9.0 | Vulnerable | Debian |
| cpe:2.3:a:oracle:jd_edwards_world_security:a9.4:*:*:*:*:*:*:* | a9.4 | Vulnerable | Oracle |
| cpe:2.3:a:oracle:peoplesoft_enterprise_peopletools:8.56:*:*:*:*:*:*:* | 8.56 | Vulnerable | Oracle |
| cpe:2.3:a:oracle:peoplesoft_enterprise_peopletools:8.57:*:*:*:*:*:*:* | 8.57 | Vulnerable | Oracle |
| cpe:2.3:a:oracle:peoplesoft_enterprise_peopletools:8.58:*:*:*:*:*:*:* | 8.58 | Vulnerable | Oracle |
| cpe:2.3:o:oracle:ethernet_switch_es2-64_firmware:2.0.0.14:*:*:*:*:*:*:* | 2.0.0.14 | Vulnerable | Oracle |
| cpe:2.3:h:oracle:ethernet_switch_es2-64:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Oracle |
- cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:* Versions 1.0.2 – 1.0.2v Vulnerable ·OpenSSL
- cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* Versions 16.04 Vulnerable ·Canonical
- cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* Versions 18.04 Vulnerable ·Canonical
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* Versions 9.0 Vulnerable ·Debian
- cpe:2.3:a:oracle:jd_edwards_world_security:a9.4:*:*:*:*:*:*:* Versions a9.4 Vulnerable ·Oracle
- cpe:2.3:a:oracle:peoplesoft_enterprise_peopletools:8.56:*:*:*:*:*:*:* Versions 8.56 Vulnerable ·Oracle
- cpe:2.3:a:oracle:peoplesoft_enterprise_peopletools:8.57:*:*:*:*:*:*:* Versions 8.57 Vulnerable ·Oracle
- cpe:2.3:a:oracle:peoplesoft_enterprise_peopletools:8.58:*:*:*:*:*:*:* Versions 8.58 Vulnerable ·Oracle
- cpe:2.3:o:oracle:ethernet_switch_es2-64_firmware:2.0.0.14:*:*:*:*:*:*:* Versions 2.0.0.14 Vulnerable ·Oracle
- cpe:2.3:h:oracle:ethernet_switch_es2-64:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Oracle
Show 24 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:oracle:ethernet_switch_es2-72_firmware:2.0.0.14:*:*:*:*:*:*:* | 2.0.0.14 | Vulnerable | Oracle |
| cpe:2.3:h:oracle:ethernet_switch_es2-72:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Oracle |
| cpe:2.3:o:fujitsu:m10-1_firmware:*:*:*:*:*:*:*:* | before xcp2400 | Vulnerable | Fujitsu |
| cpe:2.3:h:fujitsu:m10-1:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Fujitsu |
| cpe:2.3:o:fujitsu:m10-4_firmware:*:*:*:*:*:*:*:* | before xcp2400 | Vulnerable | Fujitsu |
| cpe:2.3:h:fujitsu:m10-4:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Fujitsu |
| cpe:2.3:o:fujitsu:m10-4s_firmware:*:*:*:*:*:*:*:* | before xcp2400 | Vulnerable | Fujitsu |
| cpe:2.3:h:fujitsu:m10-4s:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Fujitsu |
| cpe:2.3:o:fujitsu:m12-1_firmware:*:*:*:*:*:*:*:* | before xcp2400 | Vulnerable | Fujitsu |
| cpe:2.3:h:fujitsu:m12-1:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Fujitsu |
| cpe:2.3:o:fujitsu:m12-2_firmware:*:*:*:*:*:*:*:* | before xcp2400 | Vulnerable | Fujitsu |
| cpe:2.3:h:fujitsu:m12-2:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Fujitsu |
| cpe:2.3:o:fujitsu:m12-2s_firmware:*:*:*:*:*:*:*:* | before xcp2400 | Vulnerable | Fujitsu |
| cpe:2.3:h:fujitsu:m12-2s:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Fujitsu |
| cpe:2.3:o:fujitsu:m10-1_firmware:*:*:*:*:*:*:*:* | before xcp3100 | Vulnerable | Fujitsu |
| cpe:2.3:o:fujitsu:m10-4_firmware:*:*:*:*:*:*:*:* | before xcp3100 | Vulnerable | Fujitsu |
| cpe:2.3:o:fujitsu:m10-4s_firmware:*:*:*:*:*:*:*:* | before xcp3100 | Vulnerable | Fujitsu |
| cpe:2.3:o:fujitsu:m12-1_firmware:*:*:*:*:*:*:*:* | before xcp3100 | Vulnerable | Fujitsu |
| cpe:2.3:o:fujitsu:m12-2_firmware:*:*:*:*:*:*:*:* | before xcp3100 | Vulnerable | Fujitsu |
| cpe:2.3:o:fujitsu:m12-2s_firmware:*:*:*:*:*:*:*:* | before xcp3100 | Vulnerable | Fujitsu |
| cpe:2.3:o:oracle:ethernet_switch_es1-24_firmware:1.3.1:*:*:*:*:*:*:* | 1.3.1 | Vulnerable | Oracle |
| cpe:2.3:h:oracle:ethernet_switch_es1-24:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Oracle |
| cpe:2.3:o:oracle:ethernet_switch_tor-72_firmware:1.2.2:*:*:*:*:*:*:* | 1.2.2 | Vulnerable | Oracle |
| cpe:2.3:h:oracle:ethernet_switch_tor-72:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Oracle |
- cpe:2.3:o:oracle:ethernet_switch_es2-72_firmware:2.0.0.14:*:*:*:*:*:*:* Versions 2.0.0.14 Vulnerable ·Oracle
- cpe:2.3:h:oracle:ethernet_switch_es2-72:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Oracle
- cpe:2.3:o:fujitsu:m10-1_firmware:*:*:*:*:*:*:*:* Versions before xcp2400 Vulnerable ·Fujitsu
- cpe:2.3:h:fujitsu:m10-1:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Fujitsu
- cpe:2.3:o:fujitsu:m10-4_firmware:*:*:*:*:*:*:*:* Versions before xcp2400 Vulnerable ·Fujitsu
- cpe:2.3:h:fujitsu:m10-4:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Fujitsu
- cpe:2.3:o:fujitsu:m10-4s_firmware:*:*:*:*:*:*:*:* Versions before xcp2400 Vulnerable ·Fujitsu
- cpe:2.3:h:fujitsu:m10-4s:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Fujitsu
- cpe:2.3:o:fujitsu:m12-1_firmware:*:*:*:*:*:*:*:* Versions before xcp2400 Vulnerable ·Fujitsu
- cpe:2.3:h:fujitsu:m12-1:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Fujitsu
- cpe:2.3:o:fujitsu:m12-2_firmware:*:*:*:*:*:*:*:* Versions before xcp2400 Vulnerable ·Fujitsu
- cpe:2.3:h:fujitsu:m12-2:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Fujitsu
- cpe:2.3:o:fujitsu:m12-2s_firmware:*:*:*:*:*:*:*:* Versions before xcp2400 Vulnerable ·Fujitsu
- cpe:2.3:h:fujitsu:m12-2s:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Fujitsu
- cpe:2.3:o:fujitsu:m10-1_firmware:*:*:*:*:*:*:*:* Versions before xcp3100 Vulnerable ·Fujitsu
- cpe:2.3:o:fujitsu:m10-4_firmware:*:*:*:*:*:*:*:* Versions before xcp3100 Vulnerable ·Fujitsu
- cpe:2.3:o:fujitsu:m10-4s_firmware:*:*:*:*:*:*:*:* Versions before xcp3100 Vulnerable ·Fujitsu
- cpe:2.3:o:fujitsu:m12-1_firmware:*:*:*:*:*:*:*:* Versions before xcp3100 Vulnerable ·Fujitsu
- cpe:2.3:o:fujitsu:m12-2_firmware:*:*:*:*:*:*:*:* Versions before xcp3100 Vulnerable ·Fujitsu
- cpe:2.3:o:fujitsu:m12-2s_firmware:*:*:*:*:*:*:*:* Versions before xcp3100 Vulnerable ·Fujitsu
- cpe:2.3:o:oracle:ethernet_switch_es1-24_firmware:1.3.1:*:*:*:*:*:*:* Versions 1.3.1 Vulnerable ·Oracle
- cpe:2.3:h:oracle:ethernet_switch_es1-24:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Oracle
- cpe:2.3:o:oracle:ethernet_switch_tor-72_firmware:1.2.2:*:*:*:*:*:*:* Versions 1.2.2 Vulnerable ·Oracle
- cpe:2.3:h:oracle:ethernet_switch_tor-72:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Oracle
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 5 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 7 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 8 | Affected | No fix yet: Fix deferred |
| Red Hat JBoss Enterprise Application Platform 5 | Affected | No fix planned: Out of support scope |
| Red Hat JBoss Enterprise Application Platform 6 | Affected | No fix planned: Out of support scope |
| Red Hat JBoss Enterprise Web Server 2 | Affected | No fix planned: Out of support scope |
Not affected: 4 products
- Red Hat Advanced Cluster Management for Kubernetes 2
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat JBoss Core Services
Timeline
- 2026-10-02 Threatist record created from CVE-2020-1968
- 2026-10-03 Alias added: GHSA-mh8f-5gw2-5wgh
References
Patch 4
More Openssl vulnerabilities
- TI-2022-01915 The c_rehash script allows command injection CVSS 3.1CRITICAL 9.8
- TI-2021-02645 SM2 Decryption Buffer Overflow CVSS 3.1CRITICAL 9.8
- TI-2009-03392 The TLS protocol, and the SSL protocol 3.0 and possibly earlier, as used in Microsoft… CVSS 3.1CRITICAL 9.8
- TI-2022-01176 The c_rehash script allows command injection CVSS 3.1CRITICAL 9.8
- TI-2014-00154 The (1) TLS and (2) DTLS implementations in OpenSSL 1.0.1 before 1.0.1g do not properly… KEVCVSS 3.1HIGH 7.5
- TI-2025-14107 Stack buffer overflow in CMS (Auth)EnvelopedData parsing CVSS 3.1HIGH 8.8
Sources
- CVE-2020-1968 · CVE Program
- CVE-2020-1968 · NVD
- FIRST EPSS
- GHSA-mh8f-5gw2-5wgh · GitHub Advisory Database · CC BY 4.0
- CVE-2020-1968 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences