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CVE-2021-3882

23
FAUCET Score

CVE-2021-3882 affects LedgerSMB 1.8 and newer versions when deployed behind a reverse proxy, failing to set the 'Secure' attribute on session cookies. This allows an attacker to potentially obtain authentication cookies by tricking users into unencrypted HTTP connections, enabling unauthorized access to the application. The vulnerability has a CVSS score of 6.8 (Medium) due to its high confidentiality and integrity impact, but requires high attack complexity and user interaction. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 1.8.0, < 1.8.22CPE matchmatch criteria
cpe:2.3:a:ledgersmb:ledgersmb:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

5.9MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
1.6
Impact Score
4.2
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.94%
Probability of exploitation in next 30 days
EPSS Percentile
57.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0094 is in the 71st percentile among its peer group of 705 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.2 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.2 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

References

github.com / ledgersmb/ledgersmb/commit/c242f5a2abf4b99b0da205473cbba034f306bfe2
PatchThird Party Advisory
huntr.dev / bounties/7061d97a-98a5-495a-8ba0-3a4c66091e9d
ExploitThird Party Advisory
ledgersmb.org / cve-2021-3882-sensitive-non-secure-cookie
Broken Link