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CVE-2020-14968

28
FAUCET Score

CVE-2020-14968 is a critical vulnerability affecting the jsrsasign package prior to version 8.0.17, as well as NetApp products utilizing this library. The flaw lies in the RSASSA-PSS implementation, which fails to detect signature manipulation through the prepending of null bytes, allowing attackers to create multiple valid signatures or potentially trigger memory corruption. Rated 9.8 Critical on CVSS, this vulnerability is easily exploitable over the network with no user interaction, leading to complete compromise of confidentiality, integrity, and availability. Currently, there is no public exploit code available, nor is there evidence of active exploitation or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 8.0.17CPE matchmatch criteria
cpe:2.3:a:kjur:jsrsasign:*:*:*:*:*:node.js:*:*
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:a:netapp:max_data:-:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
2.93%
Probability of exploitation in next 30 days
EPSS Percentile
85.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0293 is in the 77th percentile among its peer group of 36,835 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

npmpatch availablevia ghsa
Product: jsrsasignFixed in: 8.0.17

Vendor Advisories (1)

npmGHSA-q3gh-5r98-j4h3critical

RSA-PSS signature validation vulnerability by prepending zeros in jsrsasign

Jun 26, 2020

References

github.com / kjur/jsrsasign/issues/438
ExploitIssue TrackingThird Party Advisory
github.com / kjur/jsrsasign/releases/tag/8.0.17
Release NotesThird Party Advisory
github.com / kjur/jsrsasign/releases/tag/8.0.18
Release NotesThird Party Advisory
kjur.github.io / jsrsasign
Release NotesThird Party Advisory
security.netapp.com / advisory/ntap-20200724-0001
Third Party Advisory
npmjs.com / package/jsrsasign
ProductThird Party Advisory