Cyber Resilience

CVE-2026-45787

Crypto Weakness in Electerm Project Electerm ≤ 3.9.5

Published
28 May 2026
Modified
17 June 2026
Patch / advisory
CVSS Score v4 6.0
Click a component to see what it means
Raw vectorCVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
EPSS Score 0.0010 1th percentile
Risk Priority 25 floored blend · peak EPSS

CVSS and EPSS are reproduced from their sources (NVD, FIRST EPSS). Risk Priority is our own derived reading, not an NVD score.

Summary

CVE-2026-45787 is a medium-severity Inadequate Encryption Strength (CWE-326) vulnerability in Electerm Project Electerm. Its CVSS base score is 6.0 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique Password Cracking (T1110.002); ranked at the 1th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified map to IA-5 (Authenticator Management) and SA-11 (Developer Testing and Evaluation) — see the control section below for these in your framework.

OWASP Top 10 for Web (2025)

EU & UK References

Vulnerability Data

electerm is an open-sourced terminal/ssh/sftp/telnet/serialport/RDP/VNC/Spice/ftp client. Prior to 3.9.5, deterministic AES-192-CBC with a fixed zero IV, constant KDF salt, and no MAC leads to confidentiality and integrity failures for synced bookmark/profile data. Attackers can crack common passwords across installs and…

more

perform undetected ciphertext bit-flips to alter config/bookmarks. This vulnerability is fixed in 3.9.5.

CWE(s)

Related Threats

MITRE ATT&CK Enterprise Techniques

T1110.002 Password Cracking Credential Access
Adversaries may use password cracking to attempt to recover usable credentials, such as plaintext passwords, when credential material such as password hashes are obtained.
T1542.002 Component Firmware Stealth
Adversaries may modify component firmware to persist on systems.
T1110 Brute Force Credential Access
Adversaries may use brute force techniques to gain access to accounts when passwords are unknown or when password hashes are obtained.
T1211 Exploitation for Stealth Stealth
Adversaries may exploit vulnerabilities to evade detection by hiding activity, suppressing logging, or operating within trusted or unmonitored components.
T1552 Unsecured Credentials Credential Access
Adversaries may search compromised systems to find and obtain insecurely stored credentials.
T1557 Adversary-in-the-Middle Credential Access
Adversaries may attempt to position themselves between two or more networked devices using an adversary-in-the-middle (AiTM) technique to support follow-on behaviors such as [Network Sniffing](https://attack.
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2026-45353Same product: Electerm Project Electerm
CVE-2026-43942Same product: Electerm Project Electerm
CVE-2026-43943Same product: Electerm Project Electerm
CVE-2026-43941Same product: Electerm Project Electerm
CVE-2026-41501Same product: Electerm Project Electerm
CVE-2026-43940Same product: Electerm Project Electerm
CVE-2026-41500Same product: Electerm Project Electerm
CVE-2026-43944Same product: Electerm Project Electerm
CVE-2023-33838Shared CWE-759, CWE-916
CVE-2025-48811Shared CWE-353

Affected Assets

electerm project
electerm
≤ 3.9.5

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)

—

Detect
Catch it (NIST detect / respond)

—

Harden
Shrink the surface (DISA STIG)
  • 19 hardening rules · 6 OS baselines
Validate
Prove the fix (OWASP ASVS)
  • V11.4.2
  • V14.1.2
  • V14.2.4
  • V11.6.1

Mitigating Controls (NIST 800-53 r5) AI

SC-13 requires selection and implementation of specific cryptographic algorithms and key lengths, directly preventing use of inadequate encryption strength.

SC-8 directly requires mechanisms to protect integrity of transmitted data, which structurally eliminates the missing checksum weakness in protocols.

Authenticator management requires secure credential storage practices that include salted hashes.

Developer testing and evaluation can identify missing salt values through code review or analysis.

Development standards and tools can mandate salted hashing as part of secure implementation requirements.

Engineering principles applied during design and implementation can mandate cryptographically secure IV generation.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.AA-03 partial match
prevents

Authentication policies may reference password handling but do not address storage or computational cost of hashes.

PR.DS-01 partial match
prevents

Strong encryption is required to protect confidentiality of data-at-rest.

PR.DS-02 partial match
prevents

Strong encryption is required to protect confidentiality of data-in-transit.

PR.PS-01 partial match
prevents

Hardened baselines can enforce minimum cryptographic algorithm and key-length settings.

PR.PS-06 partial match
prevents

Secure SDLC practices directly enforce correct cryptographic implementation such as random IV generation for CBC.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

degrades

Requires secure handling of authentication information, which includes choosing strong password hashing schemes.

mitigates

Network security controls can mandate integrity mechanisms on transmission protocols.

prevents

Security requirements for network services can require integrity checks on data in transit.

prevents

Requiring the organization to define and enforce minimum cryptographic strength prevents deployment of insufficient key lengths or weak ciphers that can be brute-forced.

prevents

Secure SDLC processes catch cryptographic flaws like bad IVs during design and review phases.

prevents

Application security requirements can specify integrity checks for data transmission.

Hardening callouts derived

Configuration rules from DISA STIG baselines that bear on weaknesses of the type cited by this CVE. Each rule is shown with the relationship its mapping actually records, against the CWE it was authored against. Derived via CVE→CWE over `controls_xwalks` (higher-evidence rows only; rows rated `none` are excluded).

Oracle Linux 8 (3 rules)
  • V-248574 YUM must be configured to prevent the installation of patches, service packs, device drivers, or OL 8 system components that have not been digitally signed using a certificate that is recognized and approved by the organization. prevents CWE-353
  • V-248827 OL 8 must not have the rsh-server package installed. prevents CWE-353
  • V-248823 OL 8 must not have the telnet-server package installed. prevents CWE-353
Oracle Linux 9 (1 rule)
  • V-271756 OL 9 local disk partitions must implement cryptographic mechanisms to prevent unauthorized disclosure or modification of all information that requires at rest protection. prevents CWE-326
RHEL 8 (2 rules)
  • V-230224 All RHEL 8 local disk partitions must implement cryptographic mechanisms to prevent unauthorized disclosure or modification of all information that requires at rest protection. prevents CWE-326
  • V-230487 RHEL 8 must not have the telnet-server package installed. prevents CWE-353
RHEL 9 (1 rule)
  • V-257879 RHEL 9 local disk partitions must implement cryptographic mechanisms to prevent unauthorized disclosure or modification of all information that requires at rest protection. prevents CWE-326
Windows Server 2016 (1 rule)
  • V-224843 Systems requiring data at rest protections must employ cryptographic mechanisms to prevent unauthorized disclosure and modification of the information at rest. prevents CWE-326

References