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CVE-2017-3730

67
FAUCET Score

CVE-2017-3730 identifies a NULL pointer dereference vulnerability in OpenSSL 1.1.0 before 1.1.0d, which can also affect products like Oracle utilizing these versions. This flaw allows a malicious server to supply bad parameters during a DHE or ECDHE key exchange, causing the client to crash and leading to a Denial of Service. With a CVSS v3 score of 7.5 (High), this vulnerability has a network-based attack vector with low complexity. Although not in CISA's KEV catalog, it is listed as "Active" on the Hot List, and public exploit code (EDB-41192) is available, indicating potential for active exploitation and notable community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
1.1.0CPE matchmatch criteria
cpe:2.3:a:openssl:openssl:1.1.0:*:*:*:*:*:*:*
1.1.0aCPE matchmatch criteria
cpe:2.3:a:openssl:openssl:1.1.0a:*:*:*:*:*:*:*
1.1.0bCPE matchmatch criteria
cpe:2.3:a:openssl:openssl:1.1.0b:*:*:*:*:*:*:*
1.1.0cCPE matchmatch criteria
cpe:2.3:a:openssl:openssl:1.1.0c:*:*:*:*:*:*:*
6.1.3CPE matchmatch criteria
cpe:2.3:a:oracle:agile_engineering_data_management:6.1.3:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.5HIGH

CVSS:3.0/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
3.0

Exploit Intelligence

EPSS Score
55.29%
Probability of exploitation in next 30 days
EPSS Percentile
98.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
ExploitDB: EDB-41192 · Jan 26, 2017
This CVE's current EPSS score of 0.5529 is in the 98th percentile among its peer group of 51,553 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

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 (2)

github_advisorypatch availablevia nvd_reference
View patch
oraclepatch availablevia nvd_reference
View patch

Vendor Advisories (1)

redhatCVE-2017-3730Moderate

openssl: Bad (EC)DHE parameters cause a client crash

Jan 26, 2017

References

github.com / openssl/openssl/commit/efbe126e3ebb9123ac9d058aa2bb044261342aaa
PatchThird Party Advisory
security.gentoo.org / glsa/201702-07
Third Party Advisory
support.hpe.com / hpsc/doc/public/display
Third Party Advisory
exploit-db.com / exploits/41192
ExploitThird Party AdvisoryVDB Entry
openssl.org / news/secadv/20170126.txt
PatchVendor Advisory
oracle.com / technetwork/security-advisory/cpuapr2019-5072813.html
Patch
oracle.com / technetwork/security-advisory/cpujan2018-3236628.html
Patch
oracle.com / technetwork/security-advisory/cpuoct2017-3236626.html
Patch
securityfocus.com / bid/95812
Broken LinkThird Party AdvisoryVDB Entry
securitytracker.com / id/1037717
Third Party AdvisoryVDB Entry